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1.
BMJ Open ; 14(5): e081536, 2024 May 13.
Article En | MEDLINE | ID: mdl-38740503

INTRODUCTION: More than 170 countries have implemented disability-targeted social protection programmes, although few have been rigorously evaluated. Consequently, a non-randomised controlled trial is being conducted of a pilot 'cash-plus' programme implemented by UNICEF Laos and the Laos government for children with disabilities in the Xiengkhouang Province in Laos. The intervention combines a regular cash transfer with provision of assistive devices and access for caregivers to a family support programme. METHODS AND ANALYSIS: The non-randomised controlled trial will involve 350 children with disabilities across 3 districts identified by programme implementers as eligible for the programme (intervention arm). Implementers have also identified approximately 180 children with disabilities in neighbouring districts, who would otherwise meet eligibility criteria but do not live in the project areas (control arm). The trial will assess the impact of the programme on child well-being (primary outcome), as well as household poverty, caregiver quality of life and time use (secondary outcomes). Baseline data are being collected May-October 2023, with endline 24 months later. Analysis will be intention to treat. A complementary process evaluation will explore the implementation, acceptability of the programme, challenges and enablers to its delivery and mechanisms of impact. ETHICS AND DISSEMINATION: The study has received ethical approval from the London School of Hygiene and Tropical Medicine and the National Ethics Committee for Health Research in Laos. Informed consent and assent will be taken by trained data collectors. Data will be collected and stored on a secure, encrypted server and its use will follow a detailed data management plan. Findings will be disseminated in academic journals and in short briefs for policy and programmatic actors, and in online and in-person events. TRIAL REGISTRATION NUMBER: ISRCTN80603476.


Disabled Children , Humans , Laos , Child , Program Evaluation , Quality of Life , Caregivers , Non-Randomized Controlled Trials as Topic , Child, Preschool , Poverty
2.
Trials ; 25(1): 28, 2024 Jan 05.
Article En | MEDLINE | ID: mdl-38183143

BACKGROUND: Globally, women with disabilities are less likely to have access to family planning services compared to their peers without disabilities. However, evidence of effective interventions for promoting their sexual and reproductive health and rights remains limited, particularly in low- and middle-income settings. To help address disparities, an inclusive sexual and reproductive health project was developed to increase access to modern contraceptive methods and reduce unmet need for family planning for women of reproductive age with disabilities in Kaduna city, Nigeria. The project uses demand-side, supply-side and contextual interventions, with an adaptive management approach. This protocol presents a study to evaluate the project's impact. METHODS: A pragmatic cluster-randomized controlled trial design with surveys at baseline and endline will be used to evaluate interventions delivered for at least 1 year at health facility and community levels in comparison to 'standard' state provision of family planning services, in the context of state-wide and national broadcast media and advocacy. Randomization will be conducted based on the health facility catchment area, with 19 clusters in the intervention arm and 18 in the control arm. The primary outcome measure will be access to family planning. It was calculated that at least 950 women aged 18 to 49 years with disabilities (475 in each arm) will be recruited to detect a 50% increase in access compared to the control arm. For each woman with disabilities enrolled, a neighbouring woman without disabilities in the same cluster and age group will be recruited to assess whether the intervention has a specific effect amongst women with disabilities. The trial will be complemented by an integrated process evaluation. Ethical approval for the study has been given by the National Health Research Ethics Committee of Nigeria and London School of Hygiene & Tropical Medicine. DISCUSSION: Defining access to services is complex, as it is not a single variable that can be measured directly and need for family planning is subjectively defined. Consequently, we have conceptualized 'access to family planning' based on a composite of beliefs about using services if needed. TRIAL REGISTRATION: ISRCTN registry ISRCTN12671153. Retrospectively registered on 17/04/2023.


Disabled Persons , Sexual Health , Female , Humans , Family Planning Services , Nigeria/epidemiology , Sexual Behavior , Randomized Controlled Trials as Topic
3.
Cult Health Sex ; 26(3): 362-376, 2024 Mar.
Article En | MEDLINE | ID: mdl-37247199

Women with disabilities face numerous barriers to achieving sexual health on an equitable basis to others, including stigma about disability and sexuality. Yet, how specific stigmatising beliefs about disability and sexuality influence the choices women with disabilities make about their sexual health has not been studied widely. The present study sought to address this gap in the context of Sierra Leone. Semi-structured interviews were conducted with women with disabilities (N = 32) and women without disabilities (N = 10). Societal stigma of disability linked with witchcraft was seen as a deterrent to accessing sexual and reproductive health services. Stigma about women with disabilities as burdens and about childless women with disabilities as pitiable were perceived as sources of pressure on disabled women's reproductive choices. Concurrently, women with disabilities rejected common stigmatising beliefs held about their lives. Results are discussed in terms of practical implications for healthcare providers and policymakers in Sierra Leone.


Disabled Persons , Sexual Health , Female , Humans , Attitude , Social Stigma , Sexual Behavior
4.
Trials ; 24(1): 802, 2023 Dec 11.
Article En | MEDLINE | ID: mdl-38082314

BACKGROUND: There is a lack of evidence on the effectiveness of livelihood interventions amongst people with disabilities. In many countries, self-employment or microentrepreneurship is a dominant source of livelihoods for people with disabilities and their caregivers. However, this group may face heightened barriers to successful microentrepreneurship, including discrimination, exclusion from training or inaccessible transport, infrastructure and communication systems. The InBusiness programme is a livelihoods programme targeted to microentrepeneurs with disabilities or their caregivers delivered by a consortium of non-governmental organisations. The programme focuses on improving the skills, practices and opportunities of microentrepreneurs while linking them with procurement opportunities with private and public institutions. This protocol describes a randomised controlled trial of the InBusiness programme in eight counties of Kenya. METHODS: The randomised controlled trial will involve 495 microentrepreneurs who have been verified as eligible for InBusiness by programme implementers. Individuals will be randomised within counties, either being invited to enrol in InBusiness in March 2023 or allocated to a control group. Participants in the control arm will receive information about compliance with business-related laws and available social protection programmes. The trial will assess the impact of InBusiness on household consumption and individual economic empowerment (primary outcomes) as well as food security, well-being, social attitudes, unmet need for disability-related services and microenterprise profits (secondary outcomes). Baseline was conducted in March 2023, and follow-up will be 24 months from baseline (12 months from completion of the programme). Analysis will be through intention to treat. A process evaluation will explore fidelity, mechanisms of impact and the role of context, and complementary qualitative research with participants will be used to triangulate findings across the trial. DISCUSSION: This study will provide evidence on the impact of a large-scale disability-targeted livelihood programme on household and individual financial security and well-being. Currently, there is a lack of evidence on the effectiveness of livelihood programmes amongst people with disabilities, and so this trial can help inform the design and delivery of InBusiness as well as other livelihood programmes targeted to people with disabilities. TRIAL REGISTRATION: ClinicalTrials.gov ISRCTN13693137. Registered on April 24, 2023.


Caregivers , Disabled Persons , Humans , Kenya , Treatment Outcome , Randomized Controlled Trials as Topic
5.
J Autism Dev Disord ; 2023 Nov 11.
Article En | MEDLINE | ID: mdl-37950777

This paper presents quantitative and qualitative findings from an interdisciplinary research project exploring student teachers' positive perceptions of people on the autism spectrum. The set of findings reported in this paper asked 704 student teachers from one university in England (n = 191), Finland (n = 251) and Sweden (n = 262) to write down the first three words they thought of to identify the characteristics of people on the autism spectrum. Data was analysed using a multi-layered, deductive co-rated coding approach. Through this approach repeated words were extracted as were negative and undetermined words, leaving only positive words. Examination of the positive words identified found differences in the manner student teachers focus on the positive characteristics of people on the autism spectrum as this is an understudied area of research. Finnish student teachers more frequently used language to describe the positive characteristics of people on the autism spectrum that reflected their perception of learning being their primary professional role. However, English and Swedish student teachers used language that showed they perceived their role as encompassing the social and emotional development of their pupils, with little reflection about the positive characteristics of people on the autism spectrum as learners.

8.
Int J Equity Health ; 20(1): 247, 2021 11 24.
Article En | MEDLINE | ID: mdl-34819095

BACKGROUND: There has been little research on the impact of the 2014-2015 West African Ebola crisis on people with disabilities. This paper outlines the way in which the Ebola Virus Disease (EVD) outbreak in Liberia in 2015 highlighted existing inequalities and exclusion of people with disabilities and their households. METHODS: The results presented here are part of a larger ESRC/DFID-funded mixed methods research project in Liberia (2014-2017) which included a quantitative household survey undertaken in five counties, complemented by qualitative focus group discussions and interviews with people with disabilities and other key stakeholders. Uniquely, this research gathered information about people with disabilities' experience of the EVD outbreak, as well as additional socioeconomic and inclusion data, that compared their experience with non-disabled community members. RESULTS: Reflections by people with disabilities themselves show knowledge, preparation, and responses to the EVD epidemic was often markedly different among people with disabilities due to limited resources, lack of inclusion by many mainstream public health and medical interventions and pre-existing discrimination, marginalisation and exclusion. Interviews with other key stakeholder revealed a lack of awareness of disability issues or sufficient training to include this population systematically in both Ebola response activities and general health services. Key findings include the need to understand and mitigate direct and indirect health consequences of unequal responses to the epidemic, as well as the limited capacity of healthcare and social services to respond to people with disabilities. CONCLUSION: There are lessons to be learned from Ebola outbreak around inclusion of people with disabilities, relevant to the current COVID-19 pandemic. Now is the time to undertake measures to ensure that people with disabilities do not continue to be marginalised and excluded during global public health emergencies.


COVID-19 , Disabled Persons , Hemorrhagic Fever, Ebola , Delivery of Health Care , Disease Outbreaks , Government , Hemorrhagic Fever, Ebola/epidemiology , Humans , Liberia/epidemiology , Pandemics , SARS-CoV-2
9.
Article En | MEDLINE | ID: mdl-33920601

Disability stigma in many low- and middle-income countries represents one of the most pervasive barriers preventing people with disabilities from accessing equal rights and opportunities, including the uptake of available assistive technology (AT). Previous studies have rarely examined how disability stigma may be shaped through factors endemic to social interactions, including how the use of assistive technology itself may precipitate or alleviate disability stigma. Through two strands of work, we address this gap. Via a series of focus groups with Kenyans without disabilities (Study 1) and secondary data analysis of consultations with Kenyans with disabilities and their allies (Study 2), we identify shared and divergent understandings of what shapes disability stigma and discrimination. Specifically, Kenyans with and without disabilities were cognizant of how religious/spiritual interpretations of disability, conceptions of impairments as "different" from the norm, and social stereotypes about (dis)ability shaped the experience of stigma and discrimination. Moreover, both groups highlighted assistive technology as an influential factor that served to identify or "mark" someone as having a disability. However, whereas participants without disabilities saw assistive technology purely as an enabler to overcome stigma, participants with disabilities also noted that, in some cases, use of assistive technologies would attract stigma from others.


Disabled Persons , Self-Help Devices , Wheelchairs , Humans , Kenya , Social Stigma
10.
Afr J Disabil ; 9: 555, 2020.
Article En | MEDLINE | ID: mdl-32537430

BACKGROUND: Despite a global commitment to the right to education for persons with disabilities, little is known about how to achieve inclusive education in practice, particularly in low- and middle-income countries (LMICs), where the majority of the world's people with disabilities reside. Moreover, although exclusion from education is magnified by intersecting gender and socioeconomic inequalities, there is especially little knowledge regarding what approaches to inclusive education are effective amongst girls with disabilities living in resource-poor settings. OBJECTIVES: The objective of this article was to assess the impact of an inclusive education intervention led by a non-governmental organisation (NGO) on the educational attainment of girls with disabilities in the resource-poor Lakes region of Kenya. METHOD: A quasi-experimental design was employed, where the literacy and numeracy educational attainment of the intervention and control groups was compared over two time points a year apart (Time 1 and Time 2; total matched N = 353). During this period, activities pertaining to six core components of a holistic inclusive education model were implemented. RESULTS: Relative to the control group, girls with disabilities in the intervention group reported a greater increase in literacy and numeracy attainment, adjusted for grade and level of functional difficulty. CONCLUSION: Findings suggest that the intervention was successful in engendering additional improvements in the educational attainment of girls with disabilities from the resource-poor Lakes region of Kenya. Results highlight both the applicability of NGO-led interventions in settings, where national implementation of inclusive education is constrained, and the potential of taking such interventions to scale.

11.
Disabil Rehabil ; 42(25): 3664-3672, 2020 12.
Article En | MEDLINE | ID: mdl-31081389

Background: Although sexuality is a ubiquitous human need, recent empirical research has shown that people without disabilities attribute fewer sexual rights and perceive sexual healthcare to benefit fewer people with disabilities, compared to non-disabled people. Within a global context, such misperceptions have tangible, deleterious consequences for people with disabilities (e.g., exclusion from sexual healthcare), creating an urgent need for effective strategies to change misperceptions.Methods: To lay the groundwork for developing such strategies, we examined predictors of the recognition of sexual rights of people with physical disabilities within the South African context, derived from three key social psychological literatures (prejudice, social dominance orientation and intergroup contact), as well as the relationship between sexual rights and beliefs about sexual healthcare. Data were obtained through a cross-sectional survey, given to non-disabled South Africans (N = 1989).Results: Findings indicated that lack of recognition of the sexual rights for physically disabled people predicted less positive beliefs about the benefits of sexual healthcare. In turn, high levels of prejudice (both cognitive and affective) toward disabled sexuality predicted less recognition of their sexual rights, while prejudice (both forms) was predicted by prior contact with disabled people and possessing a social dominance orientation (cognitive prejudice only). Evidence was also obtained for an indirect relationship of contact and social dominance orientation on sexual healthcare beliefs through prejudice, although these effects were extremely small.Conclusion: Results are discussed in terms of their implications for rehabilitation, as well as national-level strategies to tackle negative perceptions of disabled sexuality, particularly in contexts affected by HIV.Implications for rehabilitationFindings demonstrate an empirical link between prejudice toward disabled sexuality, lack of recognition of sexual rights and viewing sexual healthcare of less benefit for disabled people.Consequently, there is need for increased attention to these dimensions within the rehabilitative context.Contact with disabled people, including dedicated interventions, is unlikely to meaningfully impact beliefs about the benefits of sexual healthcare.


Disabled Persons , Sexual Behavior , Cross-Sectional Studies , Delivery of Health Care , Humans , Prejudice , South Africa
12.
Afr. j. disabil. (Online) ; 9: 1-8, 2020. ilus
Article En | AIM | ID: biblio-1256855

Background: Despite a global commitment to the right to education for persons with disabilities, little is known about how to achieve inclusive education in practice, particularly in low- and middle-income countries (LMICs), where the majority of the world's people with disabilities reside. Moreover, although exclusion from education is magnified by intersecting gender and socioeconomic inequalities, there is especially little knowledge regarding what approaches to inclusive education are effective amongst girls with disabilities living in resource-poor settings. Objectives: The objective of this article was to assess the impact of an inclusive education intervention led by a non-governmental organisation (NGO) on the educational attainment of girls with disabilities in the resource-poor Lakes region of Kenya. Method: A quasi-experimental design was employed, where the literacy and numeracy educational attainment of the intervention and control groups was compared over two time points a year apart (Time 1 and Time 2; total matched N = 353). During this period, activities pertaining to six core components of a holistic inclusive education model were implemented. Results: Relative to the control group, girls with disabilities in the intervention group reported a greater increase in literacy and numeracy attainment, adjusted for grade and level of functional difficulty. Conclusion: Findings suggest that the intervention was successful in engendering additional improvements in the educational attainment of girls with disabilities from the resource-poor Lakes region of Kenya. Results highlight both the applicability of NGO-led interventions in settings, where national implementation of inclusive education is constrained, and the potential of taking such interventions to scale


Disability Evaluation , Education , Gender Identity , Kenya , Poverty
13.
PLoS One ; 14(7): e0217873, 2019.
Article En | MEDLINE | ID: mdl-31314807

Evidence suggests that people with disabilities are the most marginalised and vulnerable group within any population. However, little is known about the extent of inequality between people with and without disabilities in contexts where the majority of persons experience extreme poverty and hardship. This includes in Liberia, where very little is understood about the lives of disabled people in general. This study uses a multidimensional wellbeing framework to understand perceived relative inequality associated with disability by assessing several facets of wellbeing across and within households containing disabled members (N = 485) or households with no disabled members (N = 538) in Liberian communities (Total individuals surveyed, N = 2020). Statistical comparisons (adjusted for age, sex, education and wealth differences and clustered at the household, village and county level) reveal that disabled Liberians are managing similarly to non-disabled Liberians in terms of income and education, but experience many perceived relative inequalities including in life satisfaction, transport access, political participation and social inclusion. Our results further suggest that disability may lead to perceived relative inequality at the household level in terms of trust held in neighbours. However, they also show that being the head of a household may protect against perceived relative inequality in certain dimensions (e.g. healthcare and transport access, political participation) irrespective of disability status. Results are discussed in terms of practical implications for development efforts in Liberia and for disabled people in other low- and middle-income settings.


Disabled Persons , Family Characteristics , Poverty/economics , Surveys and Questionnaires , Adolescent , Adult , Female , Humans , Liberia , Male
14.
Drug Discov Today ; 24(2): 440-451, 2019 02.
Article En | MEDLINE | ID: mdl-30465877

At present, the main form of insulin administration is the invasive subcutaneous (s.c.) route and, for many patients, this means managing their glucose levels with multiple daily injections, which is both painful and difficult to administer chronically. To increase patient compliance, products are slowly reaching the market that are more patient friendly, such as the insulin patch-pump systems, including Omnipod and V-Go, but also the inhaled-insulin Afrezza® and the buccal insulin Oral-lyn™. In this review, we outline the history of insulin, the various options that are currently available in practice for insulin delivery, and the non-invasive delivery systems that have entered the different stages of clinical trials over the past decade.


Diabetes Mellitus/drug therapy , Drug Delivery Systems , Hypoglycemic Agents/administration & dosage , Insulin/administration & dosage , Clinical Trials as Topic , Humans
16.
Planta Med ; 84(9-10): 638-644, 2018 Jul.
Article En | MEDLINE | ID: mdl-29490386

The Hyacinthaceae family (sensu APGII), with approximately 900 species in around 70 genera, plays a significant role in traditional medicine in Africa as well as across Europe and the Middle and Far East. The dichloromethane extract of the bulbs of Massonia pustulata (Hyacinthaceae sensu APGII) yielded two known homoisoflavonoids, (R)-5-hydroxy-3-(4-hydroxybenzyl)-7-methoxy-4-chromanone 1: and 5-hydroxy-3-(4-hydroxybenzyl)-7-methoxy-4-chromone 2: and four spirocyclic nortriterpenoids, eucosterol 3: , 28-hydroxyeucosterol 4: and two previously unreported triterpenoid derivatives, (17S,23S)-17α,23-epoxy-3ß,22ß,29-trihydroxylanost-8-en-27,23-olide 5: , and (17S, 23S)-17α,23-epoxy-28,29-dihydroxylanost-8-en-3-on-27,23-olide 6: . Compounds 1, 2, 3: , and 5: were assessed for cytotoxicity against CaCo-2 cells using a neutral red uptake assay. Compounds 1, 2: , and 5: reduced cell viability by 70% at concentrations of 30, 100, and 100 µM, respectively. Massonia bifolia yielded three known homoisoflavonoids, (R)-(4'-hydroxy)-5-hydroxy-7-methoxy-4-chromanone 1: , (R)-(4'-hydroxy)-5,7-dihydroxy-4-chromanone 7: and (R)-(3'-hydroxy-4'-methoxy)-5,7-dihydroxy-4-chromanone 9: , two previously unreported homoisoflavonoids, (E)-3-benzylidene-(3',4'-dihydroxy)-5-hydroxy-7-methoxy-4-chromanone 8: and (R)-(3',4'-dihydroxy)-5-hydroxy-7-methoxy-4-chromanone 10,: and a spirocyclic nortriterpenoid, 15-deoxoeucosterol 11: . Compounds 1, 1AC, 7, 8, 9,: and 10: were screened for antiangiogenic activity against human retinal microvascular endothelial cells. Some compounds showed dose-dependent antiproliferative activity and blocked endothelial tube formation, suggestive of antiangiogenic activity.


Angiogenesis Inhibitors/pharmacology , Asparagaceae/chemistry , Flavonoids/pharmacology , Triterpenes/pharmacology , Angiogenesis Inhibitors/adverse effects , Angiogenesis Inhibitors/chemistry , Angiogenesis Inhibitors/isolation & purification , Caco-2 Cells , Endothelial Cells , Flavonoids/adverse effects , Flavonoids/chemistry , Flavonoids/isolation & purification , Humans , Isoflavones/adverse effects , Isoflavones/chemistry , Isoflavones/isolation & purification , Isoflavones/pharmacology , Molecular Structure , Triterpenes/adverse effects , Triterpenes/chemistry , Triterpenes/isolation & purification
17.
J Health Psychol ; 23(2): 289-305, 2018 Feb.
Article En | MEDLINE | ID: mdl-29182006

There is a growing recognition of the sexual and reproductive rights of people with disabilities, and since the World Health Organisation's World Report on Disability, increased international attention has been given to these issues. Past research, however, suggests that this group encounter barriers to sexual and reproductive rights, which are both physical and attitudinal. Against this backdrop, this article employs a sequential mixed qualitative methodology to explore the practical and subjective experiences of 13 people with physical disabilities in South Africa, with regard to their sexual lives and experiences of sexuality. These experiences were marked by concerns about their 'fitness' as sexual beings and indicated that social forces were key in shaping their expectations for their own sexual life.


Disabled Persons/psychology , Sexual Behavior , Sexual Partners/psychology , Sexuality/psychology , Female , Humans , Male , Self Concept , South Africa
18.
Cult Health Sex ; 20(2): 141-155, 2018 02.
Article En | MEDLINE | ID: mdl-28633559

There is good reason to believe that the attitudes of persons without disability towards dating a person with a physical disability might be unfavourable. However, in general, and in the Global South in particular, there is a dearth of research in this area. This study sought to take the first step in addressing this lack of enquiry, by surveying the attitudes of a general population sample in South Africa towards dating people with physical disabilities, using a vignette. Data from 1723 survey respondents were analysed thematically. Findings reveal largely negative attitudes towards people with physical disabilities. Respondents without disability perceived numerous barriers to dating a person with a physical disability, including social stigma, anxiety and concerns about the burden of care they believed such a relationship would place upon them. However, there was some evidence to suggest that some positive attitudes do exist, and a few respondents were open to dating a person with physical disabilities. Findings contribute to a nuancing and expanding of the 'myth of asexuality' among physically disabled people by showing that people with physical disabilities are actively desexualised by persons without disability. Future research is needed to explore how the inclusive attitudes, of which we did find evidence here, can be further cultivated.


Attitude to Health , Disabled Persons/psychology , Interpersonal Relations , Adolescent , Adult , Aged , Female , Humans , Male , Middle Aged , Sexual Behavior/psychology , South Africa , Surveys and Questionnaires , Young Adult
19.
Phytochemistry ; 144: 1-8, 2017 Dec.
Article En | MEDLINE | ID: mdl-28863305

Four previously undescribed diterpenoids including two crotofolanes, crotodichogamoin A and B, and two halimanes, crothalimene A and B, a new sesquiterpenoid, and fifteen previously reported compounds, including the crotofolane, crotohaumanoxide, the casbane, depressin, a further seven furanohalimane diterpenoids, three patchoulane and two further cadinane sesquiterpenoids and aleuritolic acid were isolated from the root of Croton dichogamus. Crotodichogamoin B is an important biosynthetic intermediate of the crotofolane class and this is the first report of patchoulene sesquiterpenoids from the genus. Compounds were tested at one concentration, 1 × 10-5 M, in the NCI59 cell one-dose screen but did not show significant activity snd were also evaluated for their cytotoxicity against Caco-2 cell lines using the neutral red assay. 10-epi-Maninsigin D reduced Caco-2 cell viability at 10, 30 and 100 µM, with values of decreased viability of 28%, 48% and 43% respectively. None of the other tested compounds showed significant activity.


Croton/chemistry , Diterpenes/pharmacology , Plant Roots/chemistry , Caco-2 Cells , Cell Survival/drug effects , Diterpenes/chemistry , Diterpenes/isolation & purification , Dose-Response Relationship, Drug , Humans , Molecular Conformation , Structure-Activity Relationship
20.
Nutrients ; 9(10)2017 Sep 21.
Article En | MEDLINE | ID: mdl-28934138

It is unclear if the anti-inflammatory properties of culinary herbs and spices (CHS) are linked to their ability to inhibit Colorectal cancer cell (CRC) growth. Furthermore, their therapeutic potential with regards to CRC is unknown. The aim of this study was to establish if the inhibition of HCA-7 CRC cell growth by a selection of culinary herbs and spices (CHS) is linked to the inhibition of the cells' cyclooxygenase-2 (COX-2 )expression, and to investigate their therapeutic potential. CHS inhibited the growth of Human colon adenocarcinoma-7 (HCA-7) cells; the order of potency was turmeric, bay leaf, ginger, sage, and rosemary; their combinations had a synergistic or additive effect on cell growth inhibition. CHS also inhibited COX-2 expression and activity; this action was comparable to that of the specific COX-2 inhibitor Celecoxib. Coincident with COX-2 inhibition was the accumulation of cells in the sub G1 phase of the HCA-7's cell cycle and, using bay leaf and turmeric, the cleavage of caspase 3 and poly (ADP-ribose) polymerase (PARP). This latter effect showed that the effect of these CHS on growth arrest was irreversible, and was comparable to that of the caspase activator Etoposide. This study provides evidence of a link between the inhibition of HCA-7 growth, and its COX-2 expression, by CHS, and their therapeutic potential.


Adenocarcinoma/drug therapy , Antineoplastic Agents, Phytogenic/pharmacology , Antineoplastic Combined Chemotherapy Protocols/pharmacology , Colorectal Neoplasms/drug therapy , Cyclooxygenase 2 Inhibitors/pharmacology , Cyclooxygenase 2/metabolism , Plants, Medicinal , Spices , Adenocarcinoma/enzymology , Adenocarcinoma/pathology , Antineoplastic Agents, Phytogenic/isolation & purification , Apoptosis/drug effects , Caspase 3/metabolism , Cell Line, Tumor , Cell Proliferation/drug effects , Cell Survival/drug effects , Colorectal Neoplasms/enzymology , Colorectal Neoplasms/pathology , Cyclooxygenase 2 Inhibitors/isolation & purification , Dinoprostone/metabolism , Dose-Response Relationship, Drug , Drug Synergism , Etoposide/pharmacology , G1 Phase Cell Cycle Checkpoints/drug effects , Humans , Plants, Medicinal/chemistry , Poly(ADP-ribose) Polymerases/metabolism , Time Factors
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