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Magnavacca A, Giuliani C, Roda G, Piazza S, Martinelli G, Pozzoli C, Maranta N, Papini A, Bottoni M, Casagni E, Dei Cas M, Fico G, Dell’Agli M, Sangiovanni E. Catha edulis Leaves: Morphological Characterization and Anti-Inflammatory Properties in an In Vitro Model of Gastritis. PLANTS (BASEL, SWITZERLAND) 2024; 13:1538. [PMID: 38891346 PMCID: PMC11174529 DOI: 10.3390/plants13111538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 05/22/2024] [Accepted: 05/30/2024] [Indexed: 06/21/2024]
Abstract
Khat leaves, indigenous to eastern Africa, have been chewed for centuries for their stimulant effects, attributed to alkaloids such as cathinone and cathine. Although associated with gastric disorders like gastritis and gastro-oesophageal reflux disease, the underlying molecular mechanisms remain unclear. This study aimed to examine the morpho-anatomy of khat leaves using light microscopy and histochemistry and to assess the effects of leaf extracts and alkaloids on human gastric epithelial cells (GES-1). The study identified specific cells in the palisade-spongy transition zone as storage sites for psychoactive alkaloids. Leaf extracts were prepared by mimicking the chewing process, including a prolonged salivary phase followed by a gastric phase. Cytotoxicity and cell viability were evaluated using LDH and MTT assays, respectively. Additionally, the impact on IL-8 secretion, a key chemokine in gastric inflammation, was analysed under normal and TNF-α-stimulated conditions. The results showed no increase in cytotoxicity up to 250 µg/mL. However, there was a significant decrease in cell metabolism and a reduction in both basal and TNF-α-induced IL-8 secretion, but cathinone and cathine were inactive. These findings suggest that khat may not directly cause the gastric issues reported in the literature, which would rather be attributed to other confounding factors, highlighting the need for further research to clarify its biological impacts.
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Affiliation(s)
- Andrea Magnavacca
- Department of Pharmacological and Biomolecular Sciences “Rodolfo Paoletti”, University of Milan, Via Balzaretti 9, 20133 Milan, Italy; (A.M.); (G.M.); (C.P.); (N.M.); (M.D.); (E.S.)
| | - Claudia Giuliani
- Department of Pharmaceutical Sciences, University of Milan, Via Mangiagalli 25, 20133 Milan, Italy; (C.G.); (G.R.); (M.B.); (E.C.); (G.F.)
- Ghirardi Botanical Garden, Department of Pharmaceutical Sciences, University of Milan, Via Religione 25, Toscolano Maderno, 25088 Brescia, Italy
| | - Gabriella Roda
- Department of Pharmaceutical Sciences, University of Milan, Via Mangiagalli 25, 20133 Milan, Italy; (C.G.); (G.R.); (M.B.); (E.C.); (G.F.)
| | - Stefano Piazza
- Department of Pharmacological and Biomolecular Sciences “Rodolfo Paoletti”, University of Milan, Via Balzaretti 9, 20133 Milan, Italy; (A.M.); (G.M.); (C.P.); (N.M.); (M.D.); (E.S.)
| | - Giulia Martinelli
- Department of Pharmacological and Biomolecular Sciences “Rodolfo Paoletti”, University of Milan, Via Balzaretti 9, 20133 Milan, Italy; (A.M.); (G.M.); (C.P.); (N.M.); (M.D.); (E.S.)
| | - Carola Pozzoli
- Department of Pharmacological and Biomolecular Sciences “Rodolfo Paoletti”, University of Milan, Via Balzaretti 9, 20133 Milan, Italy; (A.M.); (G.M.); (C.P.); (N.M.); (M.D.); (E.S.)
| | - Nicole Maranta
- Department of Pharmacological and Biomolecular Sciences “Rodolfo Paoletti”, University of Milan, Via Balzaretti 9, 20133 Milan, Italy; (A.M.); (G.M.); (C.P.); (N.M.); (M.D.); (E.S.)
| | - Alessio Papini
- Department of Biology, University of Florence, Via La Pira 4, 50120 Florence, Italy;
| | - Martina Bottoni
- Department of Pharmaceutical Sciences, University of Milan, Via Mangiagalli 25, 20133 Milan, Italy; (C.G.); (G.R.); (M.B.); (E.C.); (G.F.)
- Ghirardi Botanical Garden, Department of Pharmaceutical Sciences, University of Milan, Via Religione 25, Toscolano Maderno, 25088 Brescia, Italy
| | - Eleonora Casagni
- Department of Pharmaceutical Sciences, University of Milan, Via Mangiagalli 25, 20133 Milan, Italy; (C.G.); (G.R.); (M.B.); (E.C.); (G.F.)
| | - Michele Dei Cas
- Department of Health Sciences, University of Milan, Via di Rudinì 8, 20146 Milan, Italy;
| | - Gelsomina Fico
- Department of Pharmaceutical Sciences, University of Milan, Via Mangiagalli 25, 20133 Milan, Italy; (C.G.); (G.R.); (M.B.); (E.C.); (G.F.)
- Ghirardi Botanical Garden, Department of Pharmaceutical Sciences, University of Milan, Via Religione 25, Toscolano Maderno, 25088 Brescia, Italy
| | - Mario Dell’Agli
- Department of Pharmacological and Biomolecular Sciences “Rodolfo Paoletti”, University of Milan, Via Balzaretti 9, 20133 Milan, Italy; (A.M.); (G.M.); (C.P.); (N.M.); (M.D.); (E.S.)
| | - Enrico Sangiovanni
- Department of Pharmacological and Biomolecular Sciences “Rodolfo Paoletti”, University of Milan, Via Balzaretti 9, 20133 Milan, Italy; (A.M.); (G.M.); (C.P.); (N.M.); (M.D.); (E.S.)
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Gosadi IM, Makeen AM, Alqassim AY, Aqeeli AA, Ryani MA, Bahri AA, Suwaydi HA, Najmi AA, Abualgasem MM. Khat chewing among parents and their children: A potential transgenerational effect. J Family Med Prim Care 2024; 13:903-910. [PMID: 38736817 PMCID: PMC11086802 DOI: 10.4103/jfmpc.jfmpc_1415_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 09/26/2023] [Accepted: 10/03/2023] [Indexed: 05/14/2024] Open
Abstract
Background Khat has a stimulating and addictive effect and can induce consequences on the health and socioeconomic status of khat chewers. Objectives This study aims to assess knowledge, attitude, and practice of khat chewing among parents in Jazan and its consequential effect on their children. Methods This cross-sectional investigation was conducted in the Jazan region of Saudi Arabia. Data was collected via a web-based, self-administered questionnaire measuring demographics, knowledge, attitudes, and practices concerning khat chewing. The Chi-square test or Fisher's exact test was used to assess factors associated with khat chewing among parents and its consequential effect on their children. Results A total of 724 parents were included. The sample had an overall good knowledge about the health hazards of khat chewing and an attitude against khat chewing. Nonetheless, the number of parents who reported that they had ever tried khat chewing was 200 (27.6%) and 106 parents (14.6%) confirmed that their children were khat chewers. Additionally, 98 (13.5%) parents declared that they practiced khat chewing in front of their children. Higher frequencies of parents who reported providing khat to their children were identified among parents with higher attitude levels that favor khat chewing (P value = 0.04). Conclusions Efforts should be made to develop targeted preventive and educational strategies to reduce khat chewing among parents who have favorable attitudes toward khat chewing.
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Affiliation(s)
- Ibrahim M. Gosadi
- Department of Family and Community Medicine, College of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Anwar M. Makeen
- Department of Family and Community Medicine, College of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Ahmad Y. Alqassim
- Department of Family and Community Medicine, College of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Abdulwahab A. Aqeeli
- Department of Family and Community Medicine, College of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Majed A. Ryani
- Department of Family and Community Medicine, College of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Ahmed A. Bahri
- Department of Family and Community Medicine, College of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Hassan A. Suwaydi
- Department of Public Health in Jazan, Ministry of Health, Saudi Arabia, Jazan, Saudi Arabia
| | - Abdullah A. Najmi
- Department of Obstetrics and Gynecology, King Fahad Central Hospital, Jazan, Saudi Arabia
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Wogayehu B, Demissie T, Wolka E, Alemayehu M, Daka K. Individual and community-level factors associated with khat ( Catha edulis) use among women of reproductive age in Halaba zone, South Ethiopia: a multilevel mixed effect analysis. Front Psychiatry 2024; 15:1333556. [PMID: 38439793 PMCID: PMC10910081 DOI: 10.3389/fpsyt.2024.1333556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 01/30/2024] [Indexed: 03/06/2024] Open
Abstract
Introduction There is a paucity of data on factors associated with khat chewing among women of reproductive age using multilevel analysis. Furthermore, the effects of some potential factors like stressful life events, knowledge about and attitude toward the effects of khat have been given little attention and are not well understood. Therefore, this study aimed to examine the prevalence and multilevel factors associated with khat use among women of reproductive age in Halaba zone, South Ethiopia. Methods A community-based cross sectional study was conducted in Halaba zone from February to July, 2023. Systematic random sampling technique was used to include 1573 study participants. The dependent variable was current khat use, which is operationalized as using khat within 30 days preceding the study. An interviewer administered questionnaire was used for the data collection. Results The prevalence of current khat use among women of reproductive age was 65.9% [95%CI (63.5-68.2%)]. Factors significantly associated with khat use were; ages of women 35 and above years [Adjusted Odds Ratio (AOR) = 6.35, 95% CI: (3.62, 11.13)], ever married [AOR = 2.41, 95% CI: (1.10, 5.31)], secondary and above education [AOR = 0.28, 95% CI: (0.15, 0.49)], belong to richer household [AOR = 1.75, 95% CI: (1.12, 2.75)], mass media use [AOR = 3.12, 95% CI: (1.85, 4.81)], low knowledge about khat effects [AOR = 3.12, 95% CI: (1.85, 5.24)], positive attitude towards khat use [AOR = 11.55, 95% CI: (6.76, 19.71)], and strong social support [AOR = 0.43, 95% CI: (0.28, 0.64)] and non-user friend [AOR = 0.31, 95% CI: (0.20, 0.48)]. From the community level variables: rural residence [AOR = 5.06, 95% CI: (1.82, 14.09)] was significantly associated with khat use. Conclusion Khat use among women of reproductive age was found to be very high. From individual-level factors: advanced ages of women, secondary and above education, live in the richer wealth quintile, mass media exposure, low knowledge on khat effects, positive attitude towards khat use, strong social support, and from community-level variables: residing in rural area were significantly associated with khat use. Khat use screening for all women of childbearing age, as well as referral to substance use disorder centers for those women identified as having khat use disorder, should become a standard of care in all health facilities.
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Affiliation(s)
- Biruk Wogayehu
- Department of Public Health, Arbaminch College of Health Sciences, Arbaminch, South Region, Ethiopia
- Department of Public Health, School of Public Health, College of Medicine and Health Sciences, Wolaita Sodo University, Sodo, South Region, Ethiopia
| | - Tsegaye Demissie
- Department of Public Health, School of Public Health, College of Medicine and Health Sciences, Wolaita Sodo University, Sodo, South Region, Ethiopia
| | - Eskinder Wolka
- Department of Public Health, School of Public Health, College of Medicine and Health Sciences, Wolaita Sodo University, Sodo, South Region, Ethiopia
| | - Mekuriaw Alemayehu
- Department of Epidemiology and Biostatistics, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Amhara Region, Ethiopia
| | - Kassa Daka
- Department of Public Health, School of Public Health, College of Medicine and Health Sciences, Wolaita Sodo University, Sodo, South Region, Ethiopia
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Ayano G, Ayalew M, Bedaso A, Duko B. Epidemiology of Khat ( Catha edulis) Chewing in Ethiopia: A Systematic Review and meta-analysis. J Psychoactive Drugs 2024; 56:40-49. [PMID: 36508190 DOI: 10.1080/02791072.2022.2155735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 10/12/2022] [Accepted: 10/25/2022] [Indexed: 12/14/2022]
Abstract
In several countries, including Ethiopia, the shrub Catha edulis (khat) leaves are chewed for their stimulant properties. The present review summarizes evidence on the prevalence of khat use in Ethiopia and forwards recommendations for future action. PubMed, Embase, and Scopus were searched for studies examining the prevalence of Khat chewing among adolescent and/or adult populations in Ethiopia. A random-effects model was employed to estimate the pooled prevalence of khat chewing. Of the 568 articles identified, 26 were included in the review. The pooled prevalence of current and lifetime khat use was 19.55% (95% CI 14.62-25.64) and 26.14% (CI 17.66-36.87), respectively. The current prevalence of khat use was higher in men, 23.72% (CI 13.42-38.41), than in women 8.45% (CI 4.94-14.08). Lifetime prevalence of khat use was higher in men, 29.8% (CI: 22.80-37.99) than in women 13.02% (CI 8.96-18.56). The results of the meta-analysis demonstrated a higher odds of current (OR = 4.00, CI 2.80-5.73) and lifetime (OR = 2.84, CI 2.50-3.23) khat use in men than in women. Our review found a high prevalence of current (19.55%) and lifetime (26.14%) khat chewing in Ethiopia and demonstrated higher odds of current and lifetime khat use in men than in women. Awareness creation and integrated management of khat use problems at the primary health-care level is highly recommended.
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Affiliation(s)
- Getinet Ayano
- Research and Training Department, Amanuel Mental Specialized Hospital, Addis Ababa, Ethiopia
| | - Mohammed Ayalew
- Faculty of Health Sciences, College of Medicine and Health Sciences, Hawassa University, Ethiopia
| | - Asres Bedaso
- Faculty of Health Sciences, College of Medicine and Health Sciences, Hawassa University, Ethiopia
- Australian Centre for Public and Population Health Research, School of Public Health, Faculty of Health, University of Technology Sydney, Ultimo, Australia
| | - Bereket Duko
- Faculty of Health Sciences, College of Medicine and Health Sciences, Hawassa University, Ethiopia
- Curtin School of Population Health, Curtin University, Perth, Australia
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Olani AB, Gerbaba M, Getnet M, Soboka M, Decorte T. Is chewing khat associated with mental health disorders? A scoping review of the content and quality of the current evidence base. Subst Abuse Treat Prev Policy 2023; 18:39. [PMID: 37370160 DOI: 10.1186/s13011-023-00545-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND Khat (Catha edulis) is a plant commonly found in the horn of Africa whose leaves are chewed for their psycho-stimulant effects. Several studies have demonstrated the association between khat use and mental health problems. Nevertheless, evidence is mixed and inconsistent, warranting further review of available studies. This scoping review is aimed at investigating the content and quality of evidence base on the associations between khat use and mental health disorders and suggesting avenues for further research. METHODS We used a scoping review methodology to map the existing evidence using PubMed, SCOPUS, Embase, and CINAHL databases. Primary studies focusing on the association between any pattern of khat use and any form of mental health disorders are included. The review focused on all age groups, any study design, all geographical locations, and any publication year. The terms used for searching eligible studies include khat, mental disorders, and various alternative terminologies. Narrative review is employed to present findings. RESULTS 7,121 articles were found, of which 108 were eligible, conducted across 12 different countries. The majority of the studies was done during the last ten years and the studies mostly employed cross-sectional design. About 10 different categories of mental health disorders have been identified as showing associations with khat use. Despite many contradictory findings between the studies, most of the evidence base suggests that khat use is associated with mental health disorders. Non-specific psychological distress is the most frequently mentioned mental health problem (reported in 26.9% of the studies). Khat use as a predictor variable is mostly assessed using a 'yes/no' category, and as a result, dose-dependent effects of khat use on mental health are not given much consideration. CONCLUSION Although most of the studies associate khat use with mental health disorders, the causal relationships are inconclusive given the cross-sectional design of the studies, and the presence of potential confounders and several forms of biases. Available studies also report contradictory findings. Further studies are recommended using prospective designs, standardized and valid measures of khat use, and focusing on specific types of mental health disorders.
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Affiliation(s)
- Amanti Baru Olani
- Institute for Social Drug Research, Department of Criminology, Criminal Law and Social Law, Ghent University, Universiteitstraat 4, Ghent, 9000, Belgium.
- Department of Sociology, Jimma University, Jimma, P.O.Box 378, Ethiopia.
| | - Mulusew Gerbaba
- Department of Epidemiology, Institute of Health, Jimma University, Jimma, P.O.Box 378, Ethiopia
| | - Masrie Getnet
- Department of Epidemiology, Institute of Health, Jimma University, Jimma, P.O.Box 378, Ethiopia
| | - Matiwos Soboka
- Department of Psychiatry, Institute of Health, Jimma University, Jimma, P.O.Box 378, Ethiopia
| | - Tom Decorte
- Institute for Social Drug Research, Department of Criminology, Criminal Law and Social Law, Ghent University, Universiteitstraat 4, Ghent, 9000, Belgium
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Dobšíková K, Javorská Ž, Paškan M, Spálovská D, Trembulaková P, Herciková J, Kuchař M, Kozmík V, Kohout M, Setnička V. Enantioseparation and a comprehensive spectroscopic analysis of novel synthetic cathinones laterally substituted with a trifluoromethyl group. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 291:122320. [PMID: 36634495 DOI: 10.1016/j.saa.2023.122320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/20/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
Recently, the number of structural modifications of synthetic cathinones has been growing making them the second largest group of new psychoactive substances in Europe. Although they are abused because of their various psychoactive effects, some compounds from this group also serve as pharmaceuticals. Since synthetic cathinones are chiral molecules with one chiral center, their biological, toxicological, and pharmacological properties may significantly differ according to their absolute configuration and enantiomeric excess. In this study, we have synthesized two substances bearing a pharmacologically interesting trifluoromethyl group and developed a chiral liquid chromatography method using a polysaccharide chiral stationary phase to separate the corresponding enantiomers of both these drugs. Subsequently, we utilized molecular spectroscopic methods including chiroptical (electronic circular dichroism and vibrational circular dichroism) and non-polarizable (infrared and ultraviolet absorption) spectroscopies. In combination with density functional theory calculations, we have obtained stable conformers of selected enantiomers in solution and their relative abundances, which we used to simulate their spectra. The experimental and calculated data have been used to elucidate the 3D structure of the enantiomerically pure compounds and assign the absolute configuration of all prepared compounds.
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Affiliation(s)
- K Dobšíková
- Department of Analytical Chemistry, University of Chemistry and Technology, Technická 5, Prague 6 166 28, Czech Republic
| | - Ž Javorská
- Department of Organic Chemistry, University of Chemistry and Technology, Technická 5, Prague 6 166 28, Czech Republic
| | - M Paškan
- Department of Organic Chemistry, University of Chemistry and Technology, Technická 5, Prague 6 166 28, Czech Republic
| | - D Spálovská
- Department of Analytical Chemistry, University of Chemistry and Technology, Technická 5, Prague 6 166 28, Czech Republic
| | - P Trembulaková
- Department of Analytical Chemistry, University of Chemistry and Technology, Technická 5, Prague 6 166 28, Czech Republic
| | - J Herciková
- Department of Organic Chemistry, University of Chemistry and Technology, Technická 5, Prague 6 166 28, Czech Republic
| | - M Kuchař
- Forensic Laboratory of Biologically Active Substances, Department of Chemistry of Natural Compounds, University of Chemistry and Technology, Technická 5, Prague 6 166 28, Czech Republic; Psychedelic Research Centre, National Institute of Mental Health, Topolová 748, 250 67 Klecany, Czech Republic
| | - V Kozmík
- Department of Organic Chemistry, University of Chemistry and Technology, Technická 5, Prague 6 166 28, Czech Republic
| | - M Kohout
- Department of Organic Chemistry, University of Chemistry and Technology, Technická 5, Prague 6 166 28, Czech Republic
| | - V Setnička
- Department of Analytical Chemistry, University of Chemistry and Technology, Technická 5, Prague 6 166 28, Czech Republic.
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Zinga C, Taba K, Mesia G, Sumaili E, Tona G, Muyembe JJ, Kindala J, Nseka N. Use of Medicinal Plants in Africa: A Case Study From the Democratic Republic of Congo (DRC). Semin Nephrol 2023; 42:151319. [PMID: 36809743 DOI: 10.1016/j.semnephrol.2023.151319] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
Although medicinal plants are beneficial, they also can be important risk factors for the development of acute and chronic kidney injury, as well toxicity of other solid organs. There are a lack of reports of adverse kidney events and drug interactions resulting from medicinal plants owing to a lack of professional surveillance and specific data on kidney toxicity, especially in low-resource settings. Within the context of increased medicinal plant use and lack of effective regulatory control, safety is a key priority issue. We review the benefits and adverse effects of medicinal plants with particular reference to nephrotoxicity encountered in the Democratic Republic of Congo in sub-Saharan Africa.
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Affiliation(s)
- Chantal Zinga
- Division of Nephrology, Department of Internal Medicine, Faculty of Medicine, Université de Kinshasa, Kinshasa, XI, Democratic Republic of Congo; Unit of Clinical Pharmacology and Pharmacovigilance, Faculty of Medicine and Pharmaceutical Sciences, Université de Kinshasa, Kinshasa, XI, Democratic Republic of Congo; Organic Chemistry and Energetic Laboratory, Department of Chemistry and Industry, Faculty of Science, Université de Kinshasa, Kinshasa, XI, Democratic Republic of Congo.
| | - Kalulu Taba
- Organic Chemistry and Energetic Laboratory, Department of Chemistry and Industry, Faculty of Science, Université de Kinshasa, Kinshasa, XI, Democratic Republic of Congo
| | - Gauthier Mesia
- Unit of Clinical Pharmacology and Pharmacovigilance, Faculty of Medicine and Pharmaceutical Sciences, Université de Kinshasa, Kinshasa, XI, Democratic Republic of Congo
| | - Ernest Sumaili
- Division of Nephrology, Department of Internal Medicine, Faculty of Medicine, Université de Kinshasa, Kinshasa, XI, Democratic Republic of Congo
| | - Gaston Tona
- Unit of Clinical Pharmacology and Pharmacovigilance, Faculty of Medicine and Pharmaceutical Sciences, Université de Kinshasa, Kinshasa, XI, Democratic Republic of Congo
| | - Jean-Jacques Muyembe
- Institut National de Recherche Biomédicale, Division of Microbiology, Medical Biology, Faculty of Medicine, Université de Kinshasa, Kinshasa, XI, Democratic Republic of Congo
| | - Junior Kindala
- Organic Chemistry and Energetic Laboratory, Department of Chemistry and Industry, Faculty of Science, Université de Kinshasa, Kinshasa, XI, Democratic Republic of Congo
| | - Nazaire Nseka
- Division of Nephrology, Department of Internal Medicine, Faculty of Medicine, Université de Kinshasa, Kinshasa, XI, Democratic Republic of Congo
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Mohammed O, Alemayehu E, Ebrahim E, Fiseha M, Gedefie A, Ali A, Ebrahim H, Tilahun M. Atherogenic dyslipidemia and associated risk factors among hypertensive patients of five health facilities in Northeast Ethiopia. PLoS One 2023; 18:e0277185. [PMID: 36787318 PMCID: PMC9928121 DOI: 10.1371/journal.pone.0277185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 10/21/2022] [Indexed: 02/15/2023] Open
Abstract
BACKGROUND One of the major risk factors for cardiovascular disease is atherogenic dyslipidemia. There was, however, little information available in Ethiopia. Therefore, the purpose of this study was to estimate the prevalence of atherogenic dyslipidemia and related risk factors in Northeast Ethiopian hypertension patients. MATERIALS AND METHODS A systematic random sampling technique was used to perform a cross-sectional study at an institution with 384 chosen participants. A structured questionnaire was used to collect the socio-demographic, anthropometric, lifestyle, and clinical characteristics of the respondents. Student's t-test, Mann-Whitney test, and Pearson's Chi-square test were employed to compare groups based on the type of data. Furthermore, Bivariate and multivariable logistic regression analyses were performed to identify factors independently associated with dyslipidemia. Crude and adjusted odds ratios and their corresponding 95% Confidence Intervals (CI) were computed. In all cases, statistical significance was declared at p <0.05. RESULTS The majority (93.2%; 95%CI: 90.6-95.6) of patients had at least one atherogenic dyslipidemia. The prevalence of elevated total cholesterol (TC), elevated triglyceride (TG), raised low-density lipoprotein cholesterol (LDL-c), and reduced high-density lipoprotein cholesterol (HDL-c) were 47.7%, 50.3%, 44.3%, and 59.6%, respectively. Being≥ 40 years were at higher risk for having elevated levels of TC (AOR: 3.22, 95% CI: 2.40-4.32), TG (AOR: 2.30, 95% CI: 1.61-3.79), and LDL-c (AOR: 4.68, 95% CI: 2.0-10.95) than those who were below 40years. Obese participants were more likely to have high concentrations of TC (AOR: 2.57, 95%CI: 2.10-3.22), LDL-c (AOR: 3.13, 95% CI: 1.97-5.10), HDL-c (AOR: 2.71, 95% CI: 1.77-4.58), and TG (AOR: 2.23, 95%CI: 1.79-4.16). CONCLUSION This study revealed that a high prevalence of atherogenic dyslipidemia. Thus, to prevent atherogenic dyslipidemia, it is crucial to create routine blood lipid testing programs and carry out suitable intervention programs focused on risk factor reduction.
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Affiliation(s)
- Ousman Mohammed
- Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
- * E-mail:
| | - Ermiyas Alemayehu
- Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
| | - Endris Ebrahim
- Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
| | - Mesfin Fiseha
- Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
| | - Alemu Gedefie
- Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
| | - Abdurrahman Ali
- Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
| | - Hussen Ebrahim
- Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
| | - Mihret Tilahun
- Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
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Birhanu A, Bete T, Eyeberu A, Getachew T, Yadeta E, Negash A, Lami M, Balcha T, Sertsu A, Deballa A. Nearly One-Fourth of Eastern Ethiopian Adolescents are Current Psychoactive Substance Users: A School-Based Cross-Sectional Study. Subst Abuse Rehabil 2023; 14:25-34. [PMID: 37131538 PMCID: PMC10149075 DOI: 10.2147/sar.s401843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 04/22/2023] [Indexed: 05/04/2023] Open
Abstract
Introduction Psychoactive substance use is a growing health problem in both developing and developed countries. Despite adolescents being at high risk of practicing risky behaviors including substance use, there is no adequate information on the problem in the Harari Region, in the Eastern part of Ethiopia. Hence, the present study aimed to identify the burden of current substance use in high school adolescent students of Harari Region, Ethiopia, from 10th April to 10th May 2022. Methods A school-based cross-sectional study was employed on a total of 1498 randomly selected adolescent students. Poisson regression was used for the assessment of substance use over the last three months among adolescent students. The substance use burden was reported by IRR (incidence rate ratio) at a 95% Confidence interval. The final model fitness was checked using Akaike information criterion (AIC) and Bayesian information criterion (BIC) reports. The variables that had less than 0.05 P-value were declared to be statistically significant. Results The overall psychoactive substance use was 373 (24.9%, 95% Confidence Interval (CI); 22.8-27.1%). The substances included khat (21.6%, 95% CI; 18.6-23.6%), alcohol drinking (1.8%; 95% CI; 1.3-2.6%), and smoking (1.2%, 95% CI; 0.75-1.9%). Being male (IRR (Incidence Rate ratio) = 1.21, 95% CI; 1.11-1.38), availability of the substance (IRR (Incidence Rate ratio) = 2.02, 95%; 1.53-2.66), having substance user friends (IRR=1.60: 95% CI: 1.30-2.01), and being at a younger age (IRR = 1.21; 95% CI: 1.02-1.44) increased the psychoactive substance use rate in the adolescents. Conclusion and Recommendation One out of four adolescents was a current psychoactive substance user. Being male, substance availability, having substance-user friends, and being at younger age increased the psychoactive substance use rate in school adolescents in Eastern Ethiopia. The intervention that involves the schools' community, students' families, and executive bodies should be strengthened to overcome the substance use-related burdens among high school adolescent students.
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Affiliation(s)
- Abdi Birhanu
- School of Medicine, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
- Correspondence: Abdi Birhanu, Haramaya University, P.O. Box: 235, Harar, Ethiopia, Email
| | - Tilahun Bete
- Department of Psychiatry, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
| | - Addis Eyeberu
- Department of Midwifery, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
| | - Tamirat Getachew
- Department of Midwifery, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
| | - Elias Yadeta
- Department of Midwifery, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
| | - Abraham Negash
- Department of Midwifery, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
| | - Magarsa Lami
- Department of Midwifery, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
| | - Tegenu Balcha
- Department of Midwifery, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
| | - Addisu Sertsu
- Department of Nursing, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
| | - Adera Deballa
- Department of Midwifery, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
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Karau P, Odula P, Obimbo M, Ihunwo A, Nkomozepi P, Karau M. Changes in glial fibrillary acidic protein-immunoreactive astrocytes in the prefrontal cortex of the male rat following chronic khat use. J Microsc Ultrastruct 2023. [DOI: 10.4103/jmau.jmau_26_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
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11
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Ujj D, Kalydi E, Malanga M, Varga E, Sohajda T, Béni S, Benkovics G. Sugammadex analogue cyclodextrins as chiral selectors for enantioseparation of cathinone derivatives by capillary electrophoresis. J Chromatogr A 2022; 1683:463506. [DOI: 10.1016/j.chroma.2022.463506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 09/04/2022] [Accepted: 09/14/2022] [Indexed: 10/31/2022]
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12
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Gosadi IM, Abulqusim EM, Atiah AI, Ageeli BH, Alhazmi DA, Hamzi MA, Somaily SY. Assessment of COVID-19 Symptoms Distribution According to Tobacco Products Consumption and Khat Chewing: A Potential Antinociceptive Role of Nicotine Among COVID-19 Patients. Int J Gen Med 2022; 15:7299-7309. [PMID: 36133912 PMCID: PMC9484568 DOI: 10.2147/ijgm.s379592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 09/08/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Ibrahim M Gosadi
- Department of Family and Community Medicine, Faculty of Medicine, Jazan University, Jazan, 82621, Saudi Arabia
- Correspondence: Ibrahim M Gosadi, Faculty of Medicine, Jazan University, P.O. Box: 2349, Jazan, 82621, Saudi Arabia, Tel +966562137711, Email
| | | | | | - Bander H Ageeli
- Faculty of Medicine, Jazan University, Jazan, 82621, Saudi Arabia
| | - Doa’a A Alhazmi
- Faculty of Medicine, Jazan University, Jazan, 82621, Saudi Arabia
| | - Marwah A Hamzi
- Faculty of Medicine, Jazan University, Jazan, 82621, Saudi Arabia
| | - Sara Y Somaily
- Faculty of Medicine, Jazan University, Jazan, 82621, Saudi Arabia
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Githua KK, Maitho TE, Nguta JM, Okumu MO. Studies on the ethnopharmacology, antimicrobial activity, and toxicity of Catha edulis (Vahl.) Endl., in Sprague Dawley rats. F1000Res 2022; 11:286. [PMID: 37767078 PMCID: PMC10521044 DOI: 10.12688/f1000research.109243.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/15/2022] [Indexed: 09/29/2023] Open
Abstract
Background: The Mbeere South community of Embu County consume leaves of Catha edulis for its stimulant and euphoretic actions. Other indigenous uses of the plant are undocumented. Information on the pharmacology and safety of this plant is also scanty. This study aimed to document the ethnopharmacology, antimicrobial properties, and toxicity of C. edulis leaves collected from the Mbeere South community in Kenya. Methods: Ethnopharmacological data was collected from 35 informants using semi-structured questionnaires. Leaf extracts of C. edulis were prepared using acetone, water, and methanol. The antimicrobial properties of these extracts were evaluated against Bacillus cereus, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Candida albicans. The toxicity of the aqueous extract was determined using hematological, biochemical, and histopathological parameters in male and female Sprague Dawley rats at 250 mg/kg, 500 mg/kg, and 1000 mg/kg doses over 28 days. p<0.05 was considered significant. Results: All informants were male, most were married, >50 years old, with >10 years of experience. The sources, local names, preparation, storage conditions, indications, frequency of use, dosage, and side effects of C. edulis were documented. All extracts were ineffective against E. coli, P. aeruginosa, and C. albicans. They had limited efficacy against B. cereus and S. aureus. Significant differences were observed in the hematological and biochemical parameters of rats at the tested doses. Low, intermediate, and high doses of the aqueous extract of C. edulis produced local congestion of the cardiac and hepatic vessels. Localized interstitial connective tissue proliferation, multifocal kidney interstitial hemorrhage, and localized tubular epithelium necrosis were also observed in female rats. Conclusions: The ethnobotanical uses of C. edulis among the Mbeere South community were documented for the first time. Limited antimicrobial efficacy and toxicity at high doses limit the use of leaves of C. edulis.
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Affiliation(s)
- Kevin Kariuki Githua
- Health, County Government of Embu, Embu, Embu, +254, Kenya
- Public Health, Pharmacology and Toxicology, University of Nairobi, Nairobi, Nairobi, 254, Kenya
| | - Timothy Elias Maitho
- Public Health, Pharmacology and Toxicology, University of Nairobi, Nairobi, Nairobi, 254, Kenya
| | - Joseph Mwanzia Nguta
- Public Health, Pharmacology and Toxicology, University of Nairobi, Nairobi, Nairobi, 254, Kenya
| | - Mitchel Otieno Okumu
- Public Health, Pharmacology and Toxicology, University of Nairobi, Nairobi, Nairobi, 254, Kenya
- Pharmacy, Jaramogi Oginga Odinga Teaching and Referral Hospital, Kisumu, Kisumu, +254, Kenya
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Al-Jermmy ASM, Idris SM, Coulibaly-Zerbo F, Nasreddine L, Al-Jawaldeh A. Prevalence and Correlates of Anemia among Adolescents Living in Hodeida, Yemen. CHILDREN 2022; 9:children9070977. [PMID: 35883960 PMCID: PMC9322810 DOI: 10.3390/children9070977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 06/24/2022] [Accepted: 06/26/2022] [Indexed: 11/28/2022]
Abstract
This study assesses the prevalence and correlates of anemia among adolescents living in the war-affected region of Hodeida in Yemen. A secondary objective was to examine the effect of a nutrition education intervention on hemoglobin levels among anemic adolescents. A cross-sectional study was conducted on a random sample of adolescents aged 15–19 years in Hodeida (n = 400). A questionnaire was administered to inquire about demographic, socioeconomic, lifestyle and clinical characteristics. Capillary blood was obtained, anthropometric characteristics were measured and stool samples were collected. As for the secondary objective, anemic adolescents were randomly assigned to an intervention group (nutrition education and iron supplementation) and a control group (iron supplements only). The prevalence of anemia was 37.8%. Female gender, khat chewing, excessive menstruation, and experiencing headaches, fatigue, or dizziness were independent predictors of anemia. In contrast, adolescents who attended private schools, and reported snack consumption or handwashing had a significantly lower risk of anemia. A sample of 116 adolescents participated in the intervention (3 months). Hemoglobin levels were significantly higher in the intervention group compared to the control. Our findings contribute to the identification of high-risk groups that should be targeted by context-specific interventions. The implemented multicomponent intervention may serve as a prototype for larger-scale preventive programs.
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Affiliation(s)
| | - Shadia Mohamed Idris
- College of Public and Environmental Health, University of Bahri, Khartoum 12217, Sudan;
| | | | - Lara Nasreddine
- Nutrition and Food Sciences Department, Faculty of Agriculture and Food Sciences, American University of Beirut, Beirut 11-0236, Lebanon
- Correspondence: ; Tel.: +961-1-350000 (ext. 4547)
| | - Ayoub Al-Jawaldeh
- Regional Office for the Eastern Mediterranean (EMRO), World Health Organization (WHO), Cairo 7608, Egypt;
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Hussein YZ, Wondimagegnhu BA, Misganaw GS. The effect of khat cultivation on rural households' income in Bahir Dar Zuria District, Northwest Ethiopia. GEOJOURNAL 2022; 88:1369-1388. [PMID: 35789673 PMCID: PMC9243962 DOI: 10.1007/s10708-022-10697-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 05/26/2022] [Indexed: 05/03/2023]
Abstract
The study was conducted to evaluate the effect of khat cultivation on rural households' income in the Bahir Dar Zuria district using cross-sectional data collected from 180 randomly selected respondents, and supported by focus group discussions in two districts of northwest Ethiopia. The data were analyzed by simple descriptive statistics and beta regression. Results from descriptive statistics show that khat contributes the largest (51%) of farmers' income, followed by crop sale (33%), sale of livestock and their products (9%), and off-farm and non-farm activities (7%), Empirical findings from the Beta regression model also show that farming experience, education status, the proportion of land allocated for khat cultivation, total working capital of the household, the density of khat trees planted per hectare, and participation in off-farm and non-farm activity have a significant and positive effect on the proportion of khat income of the households. On the contrary, livestock holding, total asset ownership, and access to mobile phones have a significant and negative influence on the proportion of annual khat income of the households. Hence, the cultivation of khat can have a significant effect on the improvement of rural households' income and standard of living in the districts. However, increased khat production have also serious implications on the market, water resources, and human health. Thus, policymakers need to come up together to understand and devise proper running mechanisms for these controversies of khat production in association with economic, social, and health implications.
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Affiliation(s)
- Yemiamerew Z. Hussein
- Faculty of Agriculture and Environmental Sciences, Debre Tabor University, Debre Tabor, Ethiopia
| | | | - Girmachew S. Misganaw
- College of Agriculture and Environmental Sciences, Bahir Dar University, Bahir Dar, Ethiopia
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16
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Manzar MD, Alghadir AH, Khan M, Salahuddin M, Hassen HY, Almansour AM, Nureye D, Tekalign E, Shah SA, Pandi-Perumal SR, Bahammam AS. Poor Sleep in Community-Dwelling Polysubstance Users: Association With Khat Dependence, Metacognition, and Socio-Demographic Factors. Front Psychiatry 2022; 13:792460. [PMID: 35619616 PMCID: PMC9127297 DOI: 10.3389/fpsyt.2022.792460] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 02/14/2022] [Indexed: 01/08/2023] Open
Abstract
Purpose Poor sleep and cognitive deficits are often associated with increased drug use. However, no study has addressed the relationship between poor sleep, substance dependence, and metacognitive deficit in polysubstance users. Methods This was a cross-sectional study with a simple random sampling involving community-dwelling polysubstance users (n = 326, age = 18-43 years) in Mizan, Ethiopia. Participants completed a brief sleep questionnaire, severity of dependence on khat (SDS-Khat), a brief meta-cognition questionnaire, and a socio-demographic survey. Results Majority (56.4%) of the polysubstance users had sleep disturbance. Chronic health conditions [adjusted odds ratio (AOR) = 2.52, 95% confidence interval (CI) 1.31-4.85], chronic conditions in the family (AOR = 2.69, 95% CI 1.40-5.20), illiterate-primary level of educational status (AOR = 2.40, 95% CI 1.30-4.04), higher SDS-Khat score (AOR = 1.39, 95% CI 1.13-1.72), and lower meta-cognition score (AOR = 0.90, 95% CI 0.84-0.97) predicted poor sleep in the polysubstance users. Moreover, low metacognition score and high SDS score also predicted additional sleep disturbances like chronic sleep insufficiency, lethargy and restlessness after nighttime sleep, socio-occupational dysfunctions, and daytime disturbances in polysubstance users. Conclusion Poor sleep, severe khat dependence, and metacognitive deficits are common in community polysubstance users. Moreover, poor sleep is associated with higher khat dependence, lower metacognitive ability, lower educational status, and the presence of chronic conditions in polysubstance users or their families.
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Affiliation(s)
- Md Dilshad Manzar
- Department of Nursing, College of Applied Medical Sciences, Majmaah University, Al Majmaah, Saudi Arabia
| | - Ahmad H. Alghadir
- Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Masood Khan
- Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed Salahuddin
- Department of Pharmacy, College of Medicine and Health Sciences, Mizan-Tepi University (Mizan), Mizan-Aman, Ethiopia
- Pharmacology Division, Department of BioMolecular Sciences, University of Mississippi, Oxford, MS, United States
| | - Hamid Yimam Hassen
- Department of Public Health, College of Medicine and Health Sciences, Mizan-Tepi University, Mizan-Aman, Ethiopia
| | - Ahmed M. Almansour
- Department of Nursing, College of Applied Medical Sciences, Majmaah University, Al Majmaah, Saudi Arabia
| | - Dejen Nureye
- Department of Pharmacy, College of Medicine and Health Sciences, Mizan-Tepi University (Mizan), Mizan-Aman, Ethiopia
| | - Eyob Tekalign
- Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Mizan-Tepi University, Mizan-Aman, Ethiopia
| | - Showkat Ahmad Shah
- Department of Economics, College of Business and Economics, Mizan-Tepi University (Mizan), Mizan-Aman, Ethiopia
| | - Seithikurippu R. Pandi-Perumal
- Somnogen Canada Inc., Toronto, ON, Canada
- Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
| | - Ahmed S. Bahammam
- The University Sleep Disorders Center, College of Medicine, King Saud University, Riyadh, Saudi Arabia
- National Plan for Science and Technology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
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Zeleke ME, Chekol WB, Kassahun HG, Mekonnen ZA. Prevalence and Predictors of Preoperative Functional Disability Among Patients Scheduled for Elective Surgery in Northwest Ethiopia: A Multi-Center Cross-Sectional Study. OPEN ACCESS SURGERY 2022. [DOI: 10.2147/oas.s358809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Marufu C, Kisumbi BK, Osiro OA, Otieno FO. Effect of finishing protocols and staining solutions on color stability of dental resin composites. Clin Exp Dent Res 2022; 8:561-570. [PMID: 35349747 PMCID: PMC9033545 DOI: 10.1002/cre2.555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 02/21/2022] [Accepted: 02/24/2022] [Indexed: 11/30/2022] Open
Abstract
Objective The objective of this study was to evaluate the effect of finishing protocol and exposure to staining solutions on color stability of dental resin composites. Materials and Methods A nanofill and microhybrid composite, three finishing protocols (mylar, Soflex disc, and white polishing stone) and four staining solutions (tea, red wine, khat extract—two concentrations, control—distilled water) were evaluated. A digital spectrophotometer was used for color change (ΔE) measurements employing the CIE‐Lab‐color system. Paired/independent‐sample t test and two‐way analysis of variance (ANOVA) followed by Tukey's honestly significant difference posthoc test were used for inferential statistics at α = .05. Results Soflex finish was associated with least staining and comparable color stability for the two materials in tea and red wine. In Khat 2, microhybrid composite had statistically significant better color stability than nanofill for Soflex finish (14 days t = 3.270, p = .011). For microhybrid composite, mylar resulted in highest mean ΔE, whereas Soflex recorded the least in all staining solutions. For nanofill composite, white stone resulted in highest mean ΔE, whereas Soflex demonstrated the least mean ΔE in all staining solutions, except red wine where mylar demonstrated the least mean ΔE. For mylar finish, nanofill demonstrated statistically significant better color stability than microhybrid in both red wine (14 days t = 4.902, p = .001) and Khat 1 (14 days t = 3.252, p = .012). For stone finish, microhybrid demonstrated statistically significant better color stability than nanofill in all staining solutions (14 days t ≥ 4.785, p ≤ .001). Two‐way ANOVA showed a statistically significant difference in mean ΔE between and within specimens (F = 42.658, p < .001). All staining solutions caused clinically unacceptable discoloration for mylar and white stone finish. For Soflex finish, red wine produced clinically unacceptable color difference beyond 48 h. Conclusion There was a difference in color stability of resin composites depending on filler type, further influenced by finishing protocol. Soflex disc finish results in better color stability than mylar and white stone in both microhybrid and nanofill composites. Clinical significance Esthetic dental restorations such as resin composites are routine in contemporary restorative practice. Color stability of composites may be influenced by surface finish, dependent on the filler type, and consumption of chromogenic substances such as khat. To prolong their service, selection of suitable finishing protocols is an important consideration.
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Affiliation(s)
- Chamunorwa Marufu
- Department of Conservative and Prosthetic Dentistry, School of Dental Sciences, University of Nairobi, Nairobi, Kenya
| | - Bernina K Kisumbi
- Department of Conservative and Prosthetic Dentistry, School of Dental Sciences, University of Nairobi, Nairobi, Kenya
| | - Olivia A Osiro
- Department of Conservative and Prosthetic Dentistry, School of Dental Sciences, University of Nairobi, Nairobi, Kenya
| | - Fred O Otieno
- Department of Conservative and Prosthetic Dentistry, School of Dental Sciences, University of Nairobi, Nairobi, Kenya
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Khat, a Cultural Chewing Drug: A Toxicokinetic and Toxicodynamic Summary. Toxins (Basel) 2022; 14:toxins14020071. [PMID: 35202099 PMCID: PMC8875844 DOI: 10.3390/toxins14020071] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/05/2022] [Accepted: 01/17/2022] [Indexed: 12/10/2022] Open
Abstract
Khat (Catha edulis) is a recreational, chewed herbal drug that has been used as a psychostimulant for centuries in East Africa and the Arabian Peninsula, namely in Somalia, Ethiopia, and Yemen. However, the growing worldwide availability of khat has produced widespread concern. The plant comprises a large number of active substances, among which cathinone, cathine, and norephedrine are the main constituents, which can be included in the group of sympathomimetics of natural origin. In fact, these compounds are amphetamine analogues, and, as such, they have amphetamine-like nervous system stimulant effects. Chewing the leaves gives people a sensation of well-being and increases energy, alertness, and self-confidence. The chronic use of khat is, however, associated with severe cardiac, neurological, psychological, and gastrointestinal complications. The psychological dependence and withdrawal symptoms of khat are the reasons for its prolonged use. The aim of this paper is to review current knowledge on the khat plant with toxicokinetic and toxicodynamic perspectives. Namely, this review paper addresses in vitro, in vivo, and human studies. The models used, as well as the concentrations and doses with the respective biological effects, are discussed. Additionally, the main drug interactions involved with khat are described.
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Al-Duais MA, Al-Awthan YS. Khat Chewing and Lipid Profile in Human and Experimental Animals. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6001885. [PMID: 34977243 PMCID: PMC8719995 DOI: 10.1155/2021/6001885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 12/01/2021] [Indexed: 12/28/2022]
Abstract
BACKGROUND Catha edulis, also known as khat or qat, is a plant that grows in East Africa and southern Arabia. Several millions of people chew the leaves and twigs of khat plant for their central stimulating amphetamine-like effects. Khat chewing is becoming more common in Europe and the United States, owing to worldwide migration. OBJECTIVE This review examines the khat ingredients, global prevalence, and legal status as well as its effects on lipid profile. Methodology. A literature search was performed using PubMed, Scopus, and Google Scholar to collect information within articles published up to April 2021 with the goal of identifying relevant studies. The proposed mechanisms of cathinone effects on total cholesterol and triglyceride were also discussed. CONCLUSION The khat chewing habit is considered as a serious economic and health issue that needs specialized programs to assist those people to quit or reducing this habit.
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Affiliation(s)
- Mohammed A. Al-Duais
- Department of Biochemistry, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia
- Biochemistry Unit, Chemistry Department, Faculty of Science, Ibb University, Ibb, Yemen
| | - Yahya S. Al-Awthan
- Department of Biology, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia
- Department of Biology, Faculty of Science, Ibb University, Ibb, Yemen
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Al-Qadhi G, Ali Mohammed MM, Al-Ak'hali M, Al-Moraissi EA. Khat (Catha Edulis Forsk) induced apoptosis and cytotoxicity in cultured cells: A scoping review. Heliyon 2021; 7:e08466. [PMID: 34926848 PMCID: PMC8646973 DOI: 10.1016/j.heliyon.2021.e08466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/05/2021] [Accepted: 11/19/2021] [Indexed: 11/20/2022] Open
Abstract
Background Khat (Catha edulis Forsk) leaves are chewed by people in certain regions of East Africa and the Middle East for their stimulating amphetamine-like effects. The purpose of this scoping review is to systematically map the current in vitro publications that investigated the toxicological potential effects of khat on cultured human or animal cells in terms of cellular viability and activity. Methods A comprehensive electronic database search was undertaken up to December 2020 without starting date or language restrictions in accordance with the PRISMA extension for scoping review guideline and methodological quality evaluation based on the guidelines for reporting pre-clinical in vitro studies on dental materials. All in vitro studies that investigated the effect of khat plant extract (Catha Edulis) on the cultured human or animal cells were included. Results The initial search yielded 599 articles and 16 articles were finally selected to be included. The treatment of cells with khat produced different degrees of cellular changes, including decreased cellular survival, induction of apoptosis, increased ROS production, alteration of cell phenotype, and of arrest cell cycle. In this contest, khat-exposed cells expressed higher levels of pro-apoptotic protein Bax and lower levels of anti-apoptotic Bcl-2, up-regulated p38, p53, p16, and p21 proteins, as well as premature expression of differentiation markers. Conclusion Based on the current scoping review, khat induced apoptosis and cytotoxicity in cultured human cells, including oral cells.
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Affiliation(s)
- Gamilah Al-Qadhi
- Department of Basic Dental Sciences, Faculty of Dentistry, University of Science and Technology, Yemen
- Corresponding author.
| | - Marwan Mansoor Ali Mohammed
- Department of Oral and Craniofacial Health Sciences, College of Dental Medicine, University of Sharjah, United Arab Emirates
| | - Mohammed Al-Ak'hali
- Department of Preventive Dental Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia
- Department of Periodontology, Faculty of Dentistry, Sana'a University, Sana'a, Yemen
| | - Essam Ahmed Al-Moraissi
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Thamar University, Yemen
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22
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Gebremedhin MH, Lake EA, Gebrekirstos LG. Heavy khat (Catha edulis) chewing and dyslipidemia as modifiable hypertensive risk factors among patients in Southwest, Ethiopia: Unmatched case-control study. PLoS One 2021; 16:e0259078. [PMID: 34699551 PMCID: PMC8547649 DOI: 10.1371/journal.pone.0259078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 10/12/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The burden of hypertension is more devastating in low-and middle-income countries, including sub-Saharan Africa than in high-income countries. Among the modifiable risk factors, dyslipidemia and khat chewing were expanding at an alarming rate in Ethiopia but were still underestimated. Thus, this study aimed to assess heavy khat (Catha edulis) chewing and dyslipidemia as modifiable hypertensive risk factors among patients in the southwest, Ethiopia. METHODS A facility-based case-control study was conducted among 136 cases and 270 controls from May 15 to July 30, 2017. A consecutive sampling technique was used in this study. Epi data version 3.1.1 and SPSS version 21 were used for data entry and analysis. Descriptive statistics and bivariate and multivariate logistic regression analyses were performed. Both crude and adjusted odds ratios and 95% confidence intervals were reported. RESULTS The majority of the cases had a total cholesterol to high-density lipoprotein ratio of >5 (72.1%). The odds of hypertension increased among participants who had attended no formal education [AOR = 2.25, 95% CI: (1.05-4.82)], history of alcohol consumption [AOR = 5.93,95% CI:(3.11-11.30)], moderate khat chewing [AOR = 3.68, 95% CI:(1.69,8.01)], heavy khat chewing [AOR = 18.18, 95% CI: (3.56-92.89)], mild intensity physical activity [AOR = 3.01, 95% CI: (1.66-5.47)], type of oil used for food preparation [AOR = 2.81, 95% CI: (1.49-5.28)], and dyslipidemia [AOR = 6.68, 95% CI: (2.93-15.23)]. CONCLUSION The study showed that modifiable risk factors were the major factors associated with the development of hypertension. The findings of this study highlighted that health education is needed to focus on physical exercise, quitting excess alcohol consumption, quitting khat chewing by giving special emphasis to those who had no formal education. In addition, consideration should be given to a healthy diet free of cholesterol and unhealthy behavior.
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Affiliation(s)
- Meron Hadis Gebremedhin
- School of Medicine, College of Health Sciences and Medicine, Wolaita Sodo University, Wolaita Sodo, Ethiopia
| | - Eyasu Alem Lake
- Department of Pediatrics and Child Health Nursing, Wolaita Sodo University, Wolaita Sodo, Southern Ethiopia
| | - Lielt Gebreselassie Gebrekirstos
- Department of Maternity and Reproductive Health Nursing, College of Health Science and Medicine, Wolaita Sodo University, Wolaita Sodo, Ethiopia
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Rather RA, Berhanu S, Abaynah L, Sultan M. Prevalence of Khat ( Catha edulis) Chewing and Its Determinants: A Respondent-Driven Survey from Hossana, Ethiopia. Subst Abuse Rehabil 2021; 12:41-48. [PMID: 34429682 PMCID: PMC8375584 DOI: 10.2147/sar.s324711] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 08/03/2021] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Ethiopia is a leading khat producer in East Africa, and almost all regions are involved in khat production. Hossana, a small town in Southern Ethiopia, is also actively involved in khat production and its use. However, very few studies have been conducted to investigate the habit of khat chewing in this area. This study was conducted to assess the prevalence and predictors of khat chewing among Hossana residents. METHODS The study was conducted on 1700 individuals in Hossana town from March 2018 to June 2019. A structured pre-tested self-administered questionnaire was designed and used for data collection. Descriptive statistics and logistic regression were carried out to study the prevalence and predictors of khat chewing in the study area. RESULTS The overall prevalence of khat chewing among the respondents was 58.0% (95% CI 53.4-63.3) of which 68.4% were daily khat users and 31.5% used it occasionally. About 24.7% of females and 75.2% of males had chewed khat. Muslim religion (AOR 2.37; 95% CI 1.58-4.32), male gender (AOR 3.48; 95% CI 2.16-5.61), Older age (AOR 1.36; 95% CI 0.84-2.21), participants having habitual khat chewing friends or a khat chewer family associate (OR 1.70; 95% CI 1.17-2.20) were found to be independent predictors of chewing. CONCLUSION Significant portion of the population in the study area chew khat. Khat use is significantly associated with the Muslim religion, gender, age, and habit of family and friends. Further studies with larger demographic area are warranted from the study area to reproduce these findings.
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Affiliation(s)
- Riyaz Ahmad Rather
- Department of Biotechnology, College of Natural and Computational Science, Wachemo University, Hossana, Ethiopia
| | - Solomon Berhanu
- Department of Biotechnology, College of Natural and Computational Science, Wachemo University, Hossana, Ethiopia
| | - Lemma Abaynah
- Department of Biotechnology, College of Natural and Computational Science, Wachemo University, Hossana, Ethiopia
| | - Mohammed Sultan
- Department of Statistics, College of Natural and Computational Science, Wachemo University, Hossana, Ethiopia
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Mengistu Y, Dedefo G, Arkew M, Asefa G, Jebessa G, Atnafu A, Ataro Z, Kinde S. Effect of Regular Khat Chewing on Serum Fasting Sugar Level in Diabetic patients versus Healthy Individuals; A comparative study. Nutr Metab Insights 2021; 14:11786388211035220. [PMID: 34376995 PMCID: PMC8320567 DOI: 10.1177/11786388211035220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 07/08/2021] [Indexed: 11/17/2022] Open
Abstract
Background Khat chewing is a long standing social-cultural habit in several countries. Even though many people chew khat simply for its pleasurable and stimulatory effect, evidence showed widely-held belief among khat chewers in Ethiopia and other part of the world that khat helps to lower blood glucose while some studies are contradicted on the effect of khat. There is limited data about khat's effect on blood glucose especially in our setting, Harar estern Ethiopia. Objective Primarily the present study aims to compare fasting blood sugar level among khat chewer diabetic and healthy individuals, and to asses risk factors associated with poor glycemic control in diabetic subjects. Method A cross-sectional study included 200 confirmed diabetic and healthy subjects. Fasting blood sugar was determined by enzymatic method glucose oxidase and glucose hexokinase. Glycemic control was also determined for diabetic subjects based on the last 2-month diabetic clinic visits and current measurement. Result (Median ± IQR [interquartile range]) fasting blood sugar difference among Khat chewer and non khat chewer were 159 ± 83 mg/dl and 202 ± 79 mg/dl respectively in diabetic subjects when tested by glucose oxidase. Similarly, in healthy non khat chewer and khat chewer, khat chewers has lower (Median ± IQR) fasting blood glucose level 82 ± 18 mg/dl than non khat chewers 94 ± 13 mg/dl when tested by glucose oxidase. Regarding risk factors associated with poor glycemic control in diabetic subjects, positive parental diabetes history, insulin medication, being overweight, obese were significantly associated with poor glycemic control. Conclusion There was significant effect of khat on median FBS among khat chewers in diabetic and healthy individuals. And the proportion of glycemic control was high among diabetic subjects. Recommendation Health care professional and patients should manage the risk factors to delay disease progression and restrain the damage. More studies should be conducted in randomized control trial manner to further elucidate khat effect on blood sugar level so that the actual effect of khat can be identified unlike in cross sectional where there may not be strong causal relationship.
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Affiliation(s)
- Yordanos Mengistu
- Department of Medical Laboratory, School of Allied Health Sciences, Health Science College, Addis Ababa University, Ethiopia
| | - Gobena Dedefo
- Department of Medical Laboratory, School of Allied Health Sciences, Health Science College, Addis Ababa University, Ethiopia
| | - Mesay Arkew
- Department of Medical Laboratory, College of Health and Medical Science, Haramaya University, Ethiopia
| | - Gebeyehu Asefa
- Armauer Hanson Research institute, Addis Ababa, Ethiopia
| | - Gutema Jebessa
- Armauer Hanson Research institute, Addis Ababa, Ethiopia
| | - Abay Atnafu
- Armauer Hanson Research institute, Addis Ababa, Ethiopia
| | - Zerihun Ataro
- Department of Medical Laboratory, College of Health and Medical Science, Haramaya University, Ethiopia
| | - Samuel Kinde
- Department of Medical Laboratory, School of Allied Health Sciences, Health Science College, Addis Ababa University, Ethiopia
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Soares J, Costa VM, Bastos MDL, Carvalho F, Capela JP. An updated review on synthetic cathinones. Arch Toxicol 2021; 95:2895-2940. [PMID: 34100120 DOI: 10.1007/s00204-021-03083-3] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 05/17/2021] [Indexed: 02/06/2023]
Abstract
Cathinone, the main psychoactive compound found in the plant Catha edulis Forsk. (khat), is a β-keto analogue of amphetamine, sharing not only the phenethylamine structure, but also the amphetamine-like stimulant effects. Synthetic cathinones are derivatives of the naturally occurring cathinone that largely entered the recreational drug market at the end of 2000s. The former "legal status", impressive marketing strategies and their commercial availability, either in the so-called "smartshops" or via the Internet, prompted their large spread, contributing to their increasing popularity in the following years. As their popularity increased, the risks posed for public health became clear, with several reports of intoxications and deaths involving these substances appearing both in the social media and scientific literature. The regulatory measures introduced thereafter to halt these trending drugs of abuse have proved to be of low impact, as a continuous emergence of new non-controlled derivatives keep appearing to replace those prohibited. Users resort to synthetic cathinones due to their psychostimulant properties but are often unaware of the dangers they may incur when using these substances. Therefore, studies aimed at unveiling the pharmacological and toxicological properties of these substances are imperative, as they will provide increased expertise to the clinicians that face this problem on a daily basis. The present work provides a comprehensive review on history and legal status, chemistry, pharmacokinetics, pharmacodynamics, adverse effects and lethality in humans, as well as on the current knowledge of the neurotoxic mechanisms of synthetic cathinones.
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Affiliation(s)
- Jorge Soares
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal.
| | - Vera Marisa Costa
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Maria de Lourdes Bastos
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Félix Carvalho
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - João Paulo Capela
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal.
- FP-ENAS (Fernando Pessoa Energy, Environment and Health Research Unit), CEBIMED (Biomedical Research Centre), Faculty of Health Sciences, University of Fernando Pessoa, Porto, Portugal.
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Gameraddin M, Abdalmalik BA, Ibrahim M. The Impact of Khat ( Catha edulis) on Hemodynamics of the Common Carotid Arteries in Regular Khat Chewers: A Case-control Study Using Doppler Ultrasound. J Med Ultrasound 2021; 29:46-49. [PMID: 34084716 PMCID: PMC8081101 DOI: 10.4103/jmu.jmu_22_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 06/07/2020] [Accepted: 06/22/2020] [Indexed: 11/06/2022] Open
Abstract
Background: To evaluate the effect of chewing khat on the hemodynamics of the common carotid arteries (CCAs) using Doppler ultrasound imaging. Methods: This is a cross-sectional case–control study. Fifty volunteers who were chronic regular khat chewers were selected and compared with healthy nonkhat chewers. They were examined using Doppler imaging with a 7–10 MHz linear transducer. The resistivity index (RI), pulsatility index (PI), peak systolic velocity (PSV), and end-diastolic velocity of the CCAs were determined according to the standard protocol of carotid Doppler ultrasound. Results: The RI and PI of the right and left CCAs were significantly higher in khat chewers compared to controls (P < 0.001). The PSV of the right and left CCAs was considerably higher in khat chewers compared to controls (P < 0.001 and 0.04, respectively). Conclusion: The Doppler values of blood flow velocity, resistivity, and pulsatility were significantly higher in chronic regular khat chewers compared to nonkhat chewers. Khat is a significant contributory factor for increasing the hemodynamics of the CCAs.
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Affiliation(s)
- Moawia Gameraddin
- Department of Diagnostic Radiologic Technology, Faculty of Applied Medical Sciences, Taibah University, Medina, Saudi Arabia
| | - Bushra A Abdalmalik
- Department of Diagnostic Radiology Sciences, Faculty of Applied Medical Sciences, Hail University, Hail, Saudi Arabia
| | - Mohamed Ibrahim
- Faculty of Medicine, University of Hargeisa, Hargeisa, Somaliland
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Babakri MM, Al-Sakkaf K, Basaleem H. Lower urinary tract symptoms among male medical students and its relationship with khat chewing habit: A cross-sectional study. Low Urin Tract Symptoms 2021; 13:463-467. [PMID: 34060235 DOI: 10.1111/luts.12393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 04/30/2021] [Accepted: 05/15/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To determine the prevalence of the khat chewing habit among male medical students and its relationship with urinary tract symptoms. METHODS This is a cross-sectional study on male medical students at the University of Aden, Yemen, during the period 3 to 14 April 2016. The study tool was a self-administered predesigned questionnaire containing selected personal background information, habits of chewing khat, and the standard Arabic version of the International Prostate Symptom Score (IPSS). RESULTS A total of 220 students completed the questionnaire; 46% of them reported using khat regularly. Fifty-four (53.5%) students who chewed khat used it on a daily basis, and the vast majority of them (76%) spent more than 4 hours in a typical khat session. The main ± SD (median) IPSS of students who reported using khat was 10.48 ± 8.39 (10) compared with students who did not chew khat 2.89 ± 3.41 (2). The majority (90%) of the non-khat chewing students had a mild degree of lower urinary tract symptoms (LUTS) and none of them reported a severe degree, while 39.6%, 46.5%, and 13.9% of the khat chewing students reported mild-, moderate-, and severe-degree LUTS, respectively. There was a significant difference between khat chewing and non-khat chewing students in all LUTS (domains of IPPS symptoms), except the nocturia symptom. CONCLUSION The khat chewing habit is prevalent among male medical students, and it is strongly correlated with LUTS as measured by IPPS.
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Affiliation(s)
- Mohammed M Babakri
- Urology Unit, Department of Specialized Surgery, Faculty of Medicine and Health Sciences, University of Aden, Aden, Yemen
| | - Khaled Al-Sakkaf
- Department of Community Medicine and Public Health, Faculty of Medicine and Health Sciences, University of Aden, Aden, Yemen
| | - Huda Basaleem
- Department of Community Medicine and Public Health, Faculty of Medicine and Health Sciences, University of Aden, Aden, Yemen
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Al-Qadhi G, Mubarak R. Qualitative ultrastructural analysis of the submandibular salivary glands after administration of khat: in vivo study. BMC Res Notes 2021; 14:180. [PMID: 33985564 PMCID: PMC8120822 DOI: 10.1186/s13104-021-05595-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 05/05/2021] [Indexed: 11/10/2022] Open
Abstract
Objective Khat (Catha edulis Forssk) plant has been widely chewed for its psychostimulatory effects in the African and Arabian Peninsula, particularly in Yemen. Considering the khat leaves are gradually chewed without swallowing, while its active constituents are extracted into saliva, studying the effect of khat on salivary glands is necessary. This work is an extension of the previously published work that studied the effect of khat extract on the rats' submandibular salivary glands in terms of histological and immunohistochemical evaluations. The current research note aimed to better understand this effect on the ultrastructure of submandibular salivary gland cells by using transmission electron microscope. Results Oral administration of khat extract produced degenerative changes in the secretory and ductal cells of rats' submandibular salivary glands. These changes involved irregular boundaries of variable sized-nuclei, dilated RER, cytoplasmic vacuoles as well as swollen and degenerated mitochondria. Supplementary Information The online version contains supplementary material available at 10.1186/s13104-021-05595-8.
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Affiliation(s)
- Gamilah Al-Qadhi
- Department of Basic Dental Sciences, Faculty of Dentistry, University of Science and Technology, Taiz, Yemen.
| | - Rabab Mubarak
- Department of Oral Biology, Faculty of Dentistry, Cairo University, Cairo, 11553, Egypt
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29
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Pendl E, Pauritsch U, Kollroser M, Schmid MG. Determination of cathinone and cathine in Khat plant material by LC-MS/MS: Fresh vs. dried leaves. Forensic Sci Int 2020; 319:110658. [PMID: 33370655 DOI: 10.1016/j.forsciint.2020.110658] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/08/2020] [Accepted: 12/10/2020] [Indexed: 11/17/2022]
Abstract
The consumption of Khat leaves represents an ancient kind of drug abuse mainly observed in Eastern Africa and the Arab Peninsula among adult men. For this purpose, the leaves are directly collected from the shrub "Catha edulis" prior to extensive chewing process. Seizures in Europe are rare, since the leaves have to undergo quick transportation: After a short period of time, the harvested leaves decompose and suffer in decrease of concentration of the active ingredient cathinone, which makes long term transportation difficult. As an alternative, plant material can be dried to increase life period. In the past years, an increasing number of seizures were made by Austrian police, however, the content of cathinone and cathine in dry material is widely unknown. In this work, a seizure of fresh Khat leaves was compared with two seizures of dried material in terms of concentration of cathinone and cathine using LC-MS/MS analysis. For fresh leaves, a purity grade was found to be 0.115-0.158% for cathinone and 0.172-0.192% for cathine, respectively. In contrast, subsequent storage of dried Khat leaves over months led to a dramatic loss of cathinone: Analysis of two seizures revealed that concentration of cathinone dropped to 0.021-0.023%. These findings are intended to serve as a guideline for Justice authorities to estimate the content of the controlled ingredients of Khat leaves in future.
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Affiliation(s)
- Elisabeth Pendl
- Dept. of Pharm. Chemistry, University of Graz, Schubertstrasse 1, 8010, Graz, Austria
| | - Udo Pauritsch
- Institute of Forensic Medicine, Medical University of Graz, 8010, Graz, Austria
| | - Manfred Kollroser
- Institute of Forensic Medicine, Medical University of Graz, 8010, Graz, Austria
| | - Martin G Schmid
- Dept. of Pharm. Chemistry, University of Graz, Schubertstrasse 1, 8010, Graz, Austria; Institute of Forensic Medicine, Medical University of Graz, 8010, Graz, Austria.
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Alshagga MA, Mohamed Z, Seyedan A, Ebling FJP, Alshawsh MA. Khat (Catha edulis) upregulates lipolytic genes in white adipose tissue of male obese mice (C57BL/6J). JOURNAL OF ETHNOPHARMACOLOGY 2020; 262:113187. [PMID: 32730892 DOI: 10.1016/j.jep.2020.113187] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 07/09/2020] [Accepted: 07/14/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Khat (Catha edulis (Vahl) Forssk.) is a herb from the Celastraceae family (also known as qat, gaad, or mirra) that is widely-consumed in East Africa and in the Arabian peninsula. The green leaves and small stems are consumed primarily at recreational and social gatherings, and medicinally for their antidiabetic and appetite-suppression effects. AIMS The objectives of this study were to determine the effects of khat and its active alkaloid, cathinone, on food intake and body weight in mice maintained on a high-fat diet, and to investigate its mechanism of action in white adipose tissue and in the hypothalamus. MATERIALS & METHOD Adult male mice (C57BL/6J) were fed a high fat diet (HFD) for 8 weeks (n = 30), then divided into 5 groups and treated daily for a further 8 weeks with HFD + vehicle [control (HFD)], HFD + 15 mg/kg orlistat (HFDO), HFD + 200 mg/kg khat extract (HFDK200), HFD + 400 mg/kg khat extract (HFDK400) and HFD + 3.2 mg/kg cathinone (HFDCAT). Treatments were carried out once daily by gastric gavage. Blood and tissue samples were collected for biochemical, hormonal and gene expression analyses. RESULTS Khat extracts and orlistat treatment significantly reduced weight gain as compared to control mice on HFD, and cathinone administration completely prevented weight gain in mice fed on HFD. Khat treatment caused a marked reduction in body fat and in serum triglycerides. A dose-dependent effect of khat was observed in reducing serum leptin concentrations. Analysis of gene expression in adipose tissue revealed a significant upregulation of two lipolysis pathway genes:(adipose triglyceride lipase (PNPLA-2) and hormone-sensitive lipase (LIPE). In the hypothalamic there was a significant (P < 0.05) upregulation of agouti-related peptide (AgRP) and cocaine-amphetamine regulated transcript (CART) genes in the HFDK400 and HFDCAT groups. CONCLUSION Cathinone treatment blocked body weight gain, while high dose khat extract significantly reduced the weight gain of mice on an obesogenic diet through stimulation of lipolysis in white adipose tissue.
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Affiliation(s)
- Mustafa Ahmed Alshagga
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia; Division of Biomedical Sciences, School of Pharmacy, Faculty of Science & Engineering, University of Nottingham Malaysia Campus, Jalan Broga, 43500, Semenyih, Selangor, Malaysia.
| | - Zahurin Mohamed
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Atefehalsadat Seyedan
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Francis J P Ebling
- School of Life Sciences, University of Nottingham, Queen's Medical Centre, Nottingham, NG7 2UH, United Kingdom.
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Risca HI, Zuarth-Gonzalez JD, Baker LE. Conditioned place preference following concurrent treatment with 3, 4-methylenedioxypyrovalerone (MDPV) and methamphetamine in male and female Sprague-Dawley rats. Pharmacol Biochem Behav 2020; 198:173032. [PMID: 32888971 PMCID: PMC8667570 DOI: 10.1016/j.pbb.2020.173032] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/31/2020] [Accepted: 08/31/2020] [Indexed: 01/31/2023]
Abstract
Synthetic cathinones gained initial popularity on the illicit drug market as a result of attempts to evade legal restrictions on other commonly abused psychostimulants. A body of published research has determined that the psychopharmacology of the synthetic cathinone 3, 4-methylenedioxypyrovalerone (MDPV) is comparable to cocaine and methamphetamine (METH). Few preclinical studies have systematically investigated concurrent use of synthetic cathinones with other psychostimulant drugs. The present study utilized conditioned place preference (CPP), a rodent model of conditioned drug reward, to evaluate the effects of concurrent treatment with MDPV and METH. Male (N = 72) and female (N = 105) Sprague-Dawley rats underwent a two-compartment biased CPP procedure, with one trial per day for eight consecutive days. Subjects were randomly assigned to the following treatment groups: saline, METH (1 mg/kg), MDPV (1, 3.2, 5.6 mg/kg) or a mixture consisting of METH (1 mg/kg) and MDPV (1, 3.2, 5.6 mg/kg). All treatments increased locomotor activity during drug conditioning trials, and most treatments produced higher activity increases in females compared to males. Although the level of CPP established by MDPV and MDPV + METH mixtures varied between males and females, sex differences were not statistically significant. Although none of the MDPV+METH mixtures produced stronger CPP than either substance alone, some mixtures of MDPV and METH produced higher increases in locomotor activity compared to either drug alone. Further studies with higher doses may be warranted to determine if concurrent use of MDPV and METH pose an enhanced risk for abuse.
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Affiliation(s)
- Harmony I Risca
- Department of Psychology, Western Michigan University, Kalamazoo, MI 49008, USA
| | | | - Lisa E Baker
- Department of Psychology, Western Michigan University, Kalamazoo, MI 49008, USA.
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Abou-Elhamd AS, Sumayli S, Steger K, Ali AKM, Zayed AE. Effect of Khat (Catha edulis Forsk) extract on testicular maturation in pre-pubertal and pubertal rats: A morphological and biochemical study. Anat Histol Embryol 2020; 50:271-283. [PMID: 33089910 DOI: 10.1111/ahe.12626] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 09/16/2020] [Accepted: 09/25/2020] [Indexed: 12/01/2022]
Abstract
The present study aimed at analysing the effect of Khat plant extract on rat testicular development. Thirty-two weaned male albino rats (4 weeks old) were divided into four groups consisting of eight animals each. While control animals received normal saline, rats of groups I, II and III received 100, 200 and 300 mg Khat extract per kg body weight dissolved in distilled water by oral gavage daily for 8 weeks, respectively. Blood samples were collected in separate heparinized tubes by cardiac puncture from each rat and processed for measuring plasma levels of reproductive hormones LH, FSH, testosterone and prolactin. Five-µm sections were stained with haematoxylin and eosin and examined by light microscope. Some sections were immunostained for protamine-1 representing a biomarker for intact sperm differentiation. The present study clearly demonstrated that Khat extract has a pronounced effect on testicular maturation of developing albino rats at both the morphological and functional levels. Khat-treated groups revealed a significantly low serum testosterone level and severe impairment of spermatogenesis when compared with control animals. The current findings also verified, for the first time, that the final stages of sperm maturation (spermiogenesis) were strongly impaired after administration of Khat extract to experimental rats particularly at a higher dose (300 mg/kg body weight). This was proved by the very weak, if any, expression of protamine-1 in the maturing spermatids in Khat-treated rats.
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Affiliation(s)
- Alaa S Abou-Elhamd
- Department of Respiratory Care, Faculty of Applied Medical Sciences, Jazan University, Jazan, Saudi Arabia.,Department of Anatomy, Embryology & Histology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Saud Sumayli
- Department of Biology, Faculty of Science, Jazan University, Jazan, Saudi Arabia
| | - Klaus Steger
- Department of Urology, Pediatric Urology and Andrology, Section Molecular Andrology, University of Giessen, Giessen, Germany
| | | | - Ahmed E Zayed
- Department of Anatomy, Embryology & Histology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt.,Department of Biology, Faculty of Science, Jazan University, Jazan, Saudi Arabia
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Mihretu A, Fekadu A, Habtamu K, Nhunzvi C, Norton S, Teferra S. Exploring the concept of problematic khat use in the Gurage community, South Central Ethiopia: a qualitative study. BMJ Open 2020; 10:e037907. [PMID: 33046468 PMCID: PMC7552831 DOI: 10.1136/bmjopen-2020-037907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVE This study aimed to explore how problematic khat use is characterised in the Gurage community in South Central Ethiopia. DESIGN Qualitative study. SETTING Gurage community in South Central Ethiopia. PARTICIPANTS We conducted indepth interviews with 14 khat users and 5 non-khat users, and three focus group discussions with khat users. METHODS All participants were selected purposively based on their exposure to khat or khat use. We used an interview guide to explore the perceptions of participants about khat use and problematic khat use. We analysed the data thematically using OpenCode V.4.03 software. We used iterative data collection and analysis, triangulation of methods, and respondent validation to ensure scientific rigour. FINDINGS We identified three major themes: sociocultural khat use, khat suse (khat addiction) and negative consequences of khat use. Sociocultural khat use included a broad range of contexts and patterns, including use of khat for functional, social, cultural and religious reasons. Khat addiction was mainly explained in terms of associated khat withdrawal experiences, including harara/craving and inability to quit. We identified mental health, sexual life, physical health, social and financial negative consequences of khat use. The local idiom jezba was used to label a subgroup of individuals with khat suse (khat addiction). CONCLUSION The study has identified what constitutes normative and problematic khat use in the Gurage community in South Central Ethiopia. Problematic khat use is a broad concept which includes frequency, reasons, contexts, negative consequences and addiction to khat. Insights generated can be used to inform future studies on the development of tools to measure problematic khat use.
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Affiliation(s)
- Awoke Mihretu
- Department of Psychiatry, School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
- Department of Social Sciences, College of Natural and Social Sciences, Addis Ababa Science and Technology University, Addis Ababa, Ethiopia
| | - Abebaw Fekadu
- Department of Psychiatry, School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
- Centre for Innovative Drug Development and Therapeutic Trials for Africa (CDT Africa), College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Kassahun Habtamu
- School of Psychology, College of Education and Behavioral Studies, Addis Ababa University, Addis Ababa, Ethiopia
| | - Clement Nhunzvi
- Department of Rehabilitation, College of Health Sciences, University of Zimbabwe, Harare, Zimbabwe
| | - Sam Norton
- Psychology Department, Institute of Psychiatry, King's College London, London, UK
| | - Solomon Teferra
- Department of Psychiatry, School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
- Harvard TH Chan School of Public Health, Boston, Massachusetts, USA
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Saeed M, Ashraf S, Alsanosi R, Alhazmi HA, AlBratty M, Najmi A, Khalid A, Ul-Haq Z. Exploring the Molecular Mechanisms of 17β-HSD5-induced Carcinogenicity of Catha edulis via Molecular Modeling Approach. Med Chem 2020; 17:418-428. [PMID: 33019937 DOI: 10.2174/1573406416666201005142522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 08/20/2020] [Accepted: 08/20/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND The tradition of khat chewing has been deep-rooted in the African and Arabian Peninsula for centuries. Due to its amphetamine-like psycho-stimulant or euphoric effect, khat has been used by millions in Somalia, Ethiopia, Saudi Arabia and Yemen. The long-term use of khat can induce many major health outcomes, which may be serious and irreversible. OBJECTIVE Prolonged use of khat constituents has been associated with different types of cancers such as prostatic, breast and ovarian cancer. However, it has been very difficult to identify the molecular targets involved in khat carcinogenesis that interact with the Khat constituents by in vitro/in vivo experimental tools. METHODS In silico tools were used to predict potential targets involved in the carcinogenesis of khat. Pass on-line prediction server was used for the prediction of a potential molecular target for khat constituents. Molecular Dynamics simulation and MM-GBSA calculation of the predicted target were carried out. RESULTS Molecular Dynamics simulation and MM-GBSA calculation revealed that among khat constituents, β-sitosterol showed a high binding affinity towards 17β-HSD5. On the other hand, this study highlights for the first time some new interactions, which were observed in the case of cathine, cathinone and nerol during the simulation. CONCLUSION In silico molecular dynamic simulation tools were used for the first time to investigate the molecular mechanism of widely used leaves of psychoactive khat (Catha edulis) constituent. The present study provides deep insight to understand the effect of khat constituents involved in the impairment of the reproductive system and its binding to 17β-HSD5. ADMET profiling also suggested that few khat constituents do not fulfill the requirements of the Lipinski rule of five i.e. poor absorption and blood-brain barrier impermeability.
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Affiliation(s)
- Maria Saeed
- Dr. Pajwani Center for Molecular Medicine and Drug Research, ICCBS, University of Karachi, Karachi-75270, Pakistan
| | - Sajda Ashraf
- Dr. Pajwani Center for Molecular Medicine and Drug Research, ICCBS, University of Karachi, Karachi-75270, Pakistan
| | - Rashad Alsanosi
- Substance Abuse and Toxicology Research Centre, Jazan University, P.O. Box 114, Postal Code: 45142, Jazan, Saudi Arabia
| | - Hassan A Alhazmi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jazan University, P.O. Box 114, Jazan 45142, Saudi Arabia
| | - Mohammed AlBratty
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jazan University, P.O. Box 114, Jazan 45142, Saudi Arabia
| | - Asim Najmi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jazan University, P.O. Box 114, Jazan 45142, Saudi Arabia
| | - Asaad Khalid
- Substance Abuse and Toxicology Research Centre, Jazan University, P.O. Box 114, Postal Code: 45142, Jazan, Saudi Arabia
| | - Zaheer Ul-Haq
- Dr. Pajwani Center for Molecular Medicine and Drug Research, ICCBS, University of Karachi, Karachi-75270, Pakistan
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Alhazmi HA, Kadi AA, Attwa MW, Ahsan W, Taha MME, Khalid A. Exploring the effect of khat (Catha edulis) chewing on the pharmacokinetics of the antiplatelet drug clopidogrel in rats using the newly developed LC-MS/MS technique. OPEN CHEM 2020. [DOI: 10.1515/chem-2020-0046] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
AbstractClopidogrel (CLOP) is widely used worldwide for cardiovascular complications. CLOP is highly metabolized in the liver to its active metabolite by cytochrome P450 enzymes. Studies have shown that khat, an addictive substance, is a powerful inhibitor of cytochrome P450 enzymes and can influence the metabolism of drugs that are concomitantly used. Therefore, this study was designed to evaluate the effects of khat on the pharmacokinetics of CLOP in rats. In this study, rats were administered either CLOP alone or CLOP combined with khat and their plasma were obtained at different time intervals and analyzed using the newly developed and validated liquid chromatography with tandem mass spectrometry (LC-MS/MS) method using foretinib (FTB) as the internal standard. The corresponding peak area of the analyte versus FTB was used for calculating the peak ratio. The validated LC-MS/MS method resulted in the separation of the well-defined quantifiable peaks of CLOP, FTB, and CLOP metabolite within 7 min. Results showed a significant influence of khat on the peak ratio of CLOP metabolite, which was found to be significantly decreased (P < 0.05) in comparison to CLOP alone, suggesting significant decrease in the conversion of CLOP to its active metabolite due to the inhibition of CYP450 enzymes by khat. Therefore, there might be a need for dose adjustment for regular khat chewers using CLOP.
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Affiliation(s)
- Hassan A. Alhazmi
- Substance Abuse and Toxicology Research Centre, Jazan University, P. O. Box 114, 45142, Jazan, Saudi Arabia
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jazan University, P. O. Box 114, 45142, Jazan, Saudi Arabia
| | - Adnan A. Kadi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457Riyadh, 11451, Saudi Arabia
| | - Mohamed W. Attwa
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457Riyadh, 11451, Saudi Arabia
| | - Waquar Ahsan
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jazan University, P. O. Box 114, 45142, Jazan, Saudi Arabia
| | | | - Asaad Khalid
- Substance Abuse and Toxicology Research Centre, Jazan University, P. O. Box 114, 45142, Jazan, Saudi Arabia
- Medicinal and Aromatic Plants Research Institute, National Center for Research, P. O. Box: 2424, Khartoum-11111, Sudan
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Amin AR, Kassab RB, Abdel Moneim AE, Amin HK. Comparison Among Garlic, Berberine, Resveratrol,Hibiscus sabdariffa, GenusZizyphus, Hesperidin, Red Beetroot,Catha edulis,Portulaca oleracea, and Mulberry Leaves in the Treatment of Hypertension and Type 2 DM: A Comprehensive Review. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20921623] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Diabetes mellitus (DM) and hypertension are 2 of the most prevalent diseases with poor impact on health status worldwide. In most cases, they coexist with other metabolic disorders as well as cardiac, micro- and macrovascular complications. Many plants are known for their hypotensive, cardioprotective, and/or antidiabetic activities. Their active ingredients either identified and isolated or still utilized as herbal preparations of certain plant parts. The use of medicinal plants comprises the main basis for most of the traditional medicine (TM) systems and procedures. As conventional medicines seem insufficient to control such progressive diseases, herbal agents from TM could be used as adjuvant with good impact on disease control and progression as well as other concomitant health conditions. The aim of this study is to compare the efficacy of 10 different herbal medicines of botanical origin or herbal preparations in the management of hypertension and its cardiovascular complications and type 2 DM along with various coexisting health disorders. These herbal medicines are garlic, berberine, resveratrol, Hibiscus sabdariffa, Zizyphus ( oxyphylla, mucronate, jujube, rugosa), hesperidin, red beetroot, Catha edulis, mulberry leaves, and Portulaca oleracea.
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Affiliation(s)
- Amira R. Amin
- Cardiology and Oncology Section, Nasser Institute for Research and Treatment, Cairo, Egypt
| | - Rami B. Kassab
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt
| | - Ahmed E. Abdel Moneim
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt
| | - Hatem K. Amin
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, Helwan University, Egypt
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Kariri AM, Darraj MA, Wassly A, Arishi HA, Lughbi M, Kariri A, Madkhali AM, Ezzi MI, Khawaji B. Prevalence and Risk Factors of Gastroesophageal Reflux Disease in Southwestern Saudi Arabia. Cureus 2020; 12:e6626. [PMID: 31966942 PMCID: PMC6957026 DOI: 10.7759/cureus.6626] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background Gastroesophageal reflux disease (GERD) is one of the most common gastrointestinal disorders that has substantial health and economic consequences. Several modifiable risk factors are associated with GERD, hence we conducted the present study to assess the prevalence and risk factors of GERD in a previously understudied population of southwestern Saudi Arabia. Methods A cross-sectional study was carried out to calculate the prevalence of GERD and assess its risk factors. A structured self-administered questionnaire was distributed on a random sample of 853 participants from Jazan region, Saudi Arabia. The questionnaire consisted of questions on the participants’ sociodemographic and lifestyle characteristics. The presence of GERD was detected using the GERD questionnaire (GerdQ). Data were analyzed using descriptive statistics and chi-square test, with a significance level of P < 0.05 or P < 0.01. Results The study included 853 participants; 69.1% males and 30.9% females. The proportion of participants who scored >8 on the GerdQ (had GERD) was 32.2%. GERD was associated with age (P < 0.01), marital status (P < 0.01), employment status (P < 0.01), fast food intake (P < 0.01), analgesics use (P < 0.01), and smoking (P < 0.01). GERD was more common among Khat chewers compared to non-Khat chewers (P < 0.05) and showed a significant association with the frequency of Khat use. Conclusion The results show a high prevalence of GERD in the general population of Southwestern Saudi Arabia. Several sociodemographic and lifestyle characteristics were associated with the disease.
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Abstract
Khat, a psychostimulant cultivated and commonly used in Eastern Africa and the Arabian penin-sula, has a longstanding history of use embedded within the cultures of these regions. Due to changing patterns of use and the adverse effects of dependence, khat has become a growing pub- lic health concern. Despite extensive findings regarding the detrimental psychiatric, physical, and social consequences of khat dependence, research on interventions in this area is glaringly sparse. The present paper aims to summarize the consequences of chronic khat use and review existing research on interventions.
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Affiliation(s)
- Sagal Ahmed
- Department of Psychology, Fordham University, Bronx, New York, USA
| | - Haruka Minami
- Department of Psychology, Fordham University, Bronx, New York, USA
| | - Andrew Rasmussen
- Department of Psychology, Fordham University, Bronx, New York, USA
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Geta TG, Woldeamanuel GG, Hailemariam BZ, Bedada DT. Association of Chronic Khat Chewing with Blood Pressure and Predictors of Hypertension Among Adults in Gurage Zone, Southern Ethiopia: A Comparative Study. Integr Blood Press Control 2019; 12:33-42. [PMID: 31908523 PMCID: PMC6929923 DOI: 10.2147/ibpc.s234671] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 11/22/2019] [Indexed: 12/17/2022] Open
Abstract
Purpose The leaves of the Khat plant contain amphetamine-like compounds which are implicated in the development of hypertension. The increase in blood pressure coincides with the plasma cathinone level. Other factors associated with hypertension are being overweight, obesity, cigarette smoking, alcohol use, physical inactivity, unhealthy diet, and stress. Thus, this study assessed the association of chronic khat chewing with hypertension and other factors associated with hypertension. Patients and Methods Acommunity based comparative cross-sectional study was undertaken from October 5, 2018 to February 15, 2019 in Gurage zone, southern Ethiopia. A total of 1200 adults (600 chewers and 600 non-chewers) aged 18 − 65 years were selected using a convenience sampling method. The data was collected by an interviewer-administered questionnaire plus physical measurements and were carried out at a fixed time of the day in the morning (7: 00 am–10:00 am). Linear regression and binary logistic regression analysis were performed to identify the determinant factors of blood pressure. The test of statistically significant association was declared by using 95% CI and p-value less than 0.05. Results A total of 1198 adults participated in the study giving a response rate of 99.8%. The mean age of Khat chewers were 34 (± 11.27) and non-chewers were 34.73 (± 11.48) years. The mean values of systolic blood pressure and diastolic blood pressure were higher in chewers than in non-chewers (p < 0.001). The prevalence of diastolic blood pressure > 80mmHg was significantly higher among Khat chewers than in non-chewers (17.4% versus 8.7%, p < 0.001). The duration of Khat chewing was significantly associated with systolic blood pressure (Beta coefficient = 0.83, p < 0.001) and diastolic blood pressure (Beta coefficient = 0.51, p < 0.001). The sex, age, BMI and alcohol were significantly associated with both systolic and diastolic blood pressure. Conclusion Chronic Khat chewing, male sex, BMI and alcohol were associated with increased systolic and diastolic blood pressure. To assess the cause and effect relationship between chronic Khat chewing and hypertension further studies with better defined cohorts and basic science studies need to be undertaken.
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Affiliation(s)
- Teshome Gensa Geta
- Department of Biomedical Sciences, School of Medicine, College of Medicine and Health Sciences, Wolkite University, Wolkite, Ethiopia
| | - Gashaw Garedew Woldeamanuel
- Department of Biomedical Sciences, School of Medicine, College of Medicine and Health Sciences, Wolkite University, Wolkite, Ethiopia
| | - Bereket Zeleke Hailemariam
- Department of Biomedical Sciences, School of Medicine, College of Medicine and Health Sciences, Wolkite University, Wolkite, Ethiopia
| | - Diribsa Tsegaye Bedada
- Department of Statistics, College of Natural and Computational Sciences, Wolkite University, Wolkite, Ethiopia
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Prevalence of lifetime substances use among students in Ethiopia: a systematic review and meta-analysis. Syst Rev 2019; 8:326. [PMID: 31837700 PMCID: PMC6911280 DOI: 10.1186/s13643-019-1217-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 11/04/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The use of substances is a growing concern in Ethiopia, and their impacts on younger generation have been a concern of different professionals. Even though students are at high-risk of substance abuse, there is lack of comprehensive evidence for policy decision on substance use among students. Therefore, the aim of this systematic review and meta-analysis was to estimate the prevalence of common substances among students in Ethiopia. METHOD A comprehensive literature searches were done from biomedical databases: PubMed/Medline, African Journal Online, HINARI, Science Direct, and Google Scholar for article published until Dcember 31, 2017, and Addis Ababa Uiversity's electronic library search of unpublished thesis and dissertations. Two authors autonomously selected studies, extracted data, and evaluated quality of studies. The prevalence of lifetime substances use was estimated using the random effects model. Q and I2 statistics were computed to measure the extents of heterogeneity. RESULTS A total 676 study articles were identified from electronic databases, and 28 of them were included in meta-analysis. The analysis revealed that the lifetime prevalence of any substance use was 52.5% (95% CI 42.4-62.4%), khat 24.7% (95% CI 21.8-27.7%), alcohol 46.2% (95% CI 40.3-52.2%), and smoking cigarette 14.7% (95% CI 11.3-18.5%). Significant heterogeneity was observed but there was no significant publication bias. The lifetime prevalence of khat, alcohol, and cigarette smoking among high school vs university students was 22.5% (95% CI 15.2-30.7%) vs 25.1% (95% CI 21.9-28.5%), 41.4% (95% CI 22.1-62.1%) vs 47.8% (95% CI 39.9-55.7%), and 21.5% (95% CI 12.6-32.1%) vs 12.9% (95% CI 10.1-16.0%), respectively. CONCLUSION This meta-analysis highlighted the extent of lifetime prevalence of any substance, khat, alcohol, and cigarettes smoking among students in Ethiopia. Significant percent of high school students have exposed to substances. Policy makers should devise and implement strictly binding regulation to curb widespread of substances around educational institution premises at national level. Priority should be given to intervention strategies that help delay first use of substance to prevent problems later in life. Besides, the problem warrants regular national-level educational institutions based studies focusing on the magnitude, trajectory, and consequences of substance use among students. Systematic review registration: PROSPERO CRD42018082635.
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Alosaimi AN, Essén B, Riitta L, Nwaru BI, Mouniri H. Factors associated with female genital cutting in Yemen and its policy implications. Midwifery 2019; 74:99-106. [PMID: 30946983 DOI: 10.1016/j.midw.2019.03.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 02/25/2019] [Accepted: 03/17/2019] [Indexed: 11/17/2022]
Abstract
BACKGROUND A tremendous number of girls in Yemen are still subjected to female genital cutting (FGC), which carries an increased risk of health complications and violates children's rights. This study describes the prevalence of FGC in four Yemeni provinces and investigates the determinants of FGC. METHODS We analyzed data from women aged 15 to 49 years who responded to a sub-national household survey conducted in six rural districts of four Yemeni provinces in 2008-2009. Logistic regression was used to estimate the association between individual and household socioeconomic factors and FGC practices and attitudes. RESULTS The prevalence of women's FGC was 48% while daughters' FGC was 34%. Almost 45.8% of the women surveyed believe the FGC practice should discontinue. Higher odds of FGC practice and positive attitude towards it were associated with older age, family marriage, and lower tertiles of wealth and education indices. Early marriage was also associated with increased odds of FGC practice (p < 0.01). CONCLUSIONS Socioeconomic indices and other individual factors associated with FGC are differing and complex. Younger generations of women are more likely to not have FGC and to express negative attitudes towards the tradition. Appropriate strategies to invest in girls' education and women's empowerment with effective engagement of religious and community leaders might support the change of attitudes and practice of FGC in the younger generation.
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Affiliation(s)
- Abdullah N Alosaimi
- Health Sciences Department, Faculty of Social Sciences, University of Tampere, Tampere 33014, Finland.
| | - Birgitta Essén
- Department of Women's & Children's Health International Maternal & Child Health/IMCH, Uppsala University, Uppsala, Sweden.
| | - Luoto Riitta
- Health Sciences Department, Faculty of Social Sciences, University of Tampere, Tampere 33014, Finland.
| | - Bright I Nwaru
- Health Sciences Department, Faculty of Social Sciences, University of Tampere, Tampere 33014, Finland; Krefting Research Centre, Institute of Medicine, University of Gothenburg, Göteborg, Sweden.
| | - Halima Mouniri
- Averting Maternal Death and Disability Program, Department of Population and Family Health, the Mailman School of Public Health, Columbia University, New York, United States
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Ayano G, Yohannis K, Abraha M. Epidemiology of khat (Catha edulis) consumption among university students: a meta-analysis. BMC Public Health 2019; 19:150. [PMID: 30717743 PMCID: PMC6360776 DOI: 10.1186/s12889-019-6495-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 01/29/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Khat is amphetamine-like substance commonly consumed by students when they wish to study for long hours especially during examination periods. Khat consumption is associated with increased rates of cardiovascular problems, stroke, myocardial infarction, cardiomyopathy, periodontal disease, gastritis, poor oral hygiene, psychosis, decreased quality of life, and poor academic performance. METHODS PubMed, EMBASE, and SCOPUS were systematically searched without restriction by publication status. Publications were screened according to predefined inclusion criteria. Twenty-five articles were included. Random effect model was used to calculate weighted prevalence, odds ratio (OR) and corresponding 95% confidence interval (CI). We assessed the risk of publication bias by using funnel plot and Eggers's regression tests. RESULTS The pooled prevalence of current khat use among university students was 14.16% (95% CI; 11.87-16.81). The pooled prevalence of current khat use was highest in Saudi Arabia 18.85% and it was 13.59% in Ethiopia and 13.04% in Yemen. In addition, the current pooled prevalence of khat use was higher in men at 19.26% than in women 6.41%. Regarding lifetime khat use, in this study, the pooled prevalence of lifetime khat use was 27.31%. The lifetime prevalence was higher in men at 31.47% than in women 11.79%. Moreover, the lifetime prevalence of khat use was 43.27% in Yemen, 37.32% in Saudi Arabia, and 24.82% in Ethiopia. We found significantly increased odds of current (OR 3.59; 95%CI 2.01-6.41) as well as lifetime (OR 3.48; 95%CI 2.09-5.78) khat chewing in men as compared to women. CONCLUSION The pooled prevalence of current and lifetime khat consumption was 14.16 and 27.31%, respectively. Both the current and lifetime prevalence of khat use was higher in men than in women. In addition, both the current and lifetime prevalence estimates of khat consumption were low in Ethiopia than in Saudi Arabia. Moreover, the odds of both current and lifetime khat consumption were higher in male students than in female students. Programmes that specifically aim at increasing awareness and that most motivate reduced khat consumption among university students were recommended.
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Affiliation(s)
- Getinet Ayano
- Research and Training Department, Amanuel Mental Specialized Hospital, POBOX: 1971, Addis Ababa, Ethiopia.
| | | | - Mebratu Abraha
- Department of Psychiatry, Paulo's millennium medical college, Addis Ababa, Ethiopia
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Abebe W. Khat: A Substance of Growing Abuse with Adverse Drug Interaction Risks. J Natl Med Assoc 2018; 110:624-634. [DOI: 10.1016/j.jnma.2018.04.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/05/2018] [Accepted: 04/06/2018] [Indexed: 10/17/2022]
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Ismail AA, Almalki M, Agag A, Solan YM, Bani IA. Pesticide Application and Khat Chewing as Predictors of the Neurological Health Outcomes among Pesticide Applicators in a Vector Control Unit, Saudi Arabia. THE INTERNATIONAL JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE 2018; 9:32-44. [PMID: 29319053 PMCID: PMC6466969 DOI: 10.15171/ijoem.2018.1160] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 12/16/2017] [Indexed: 01/09/2023]
Abstract
Background:
Pesticide applicators are at risk of developing neurological symptoms and neurobehavioral deficits. This risk may increase if the applicator chews stimulant plants like khat.
Objective:
To examine the sociodemographic and exposure determinants of neurological symptoms presentation, neurobehavioral performance, and cholinesterase activity among pesticide applicators in a vector control unit, Saudi Arabia.
Methods:
In a cross-sectional study, 30 pesticide applicators and 32 non-applicators from a vector control unit in Jazan region, Saudi Arabia, were studied. The study participants completed an exposure and medical questionnaire, and a neurobehavioral test battery. Their blood samples were also tested for the measurement of butyryl cholinesterase (BChE).
Results:
The mean blood BChE level was no significantly different between the applicators and non-applicators. Working in pesticide application and chewing khat were significant predictors of the neurological symptoms presentation and neurobehavioral deficits among the study participants. Each factor was associated with about 40% of the symptoms included in the questionnaire. Exposure to pyrethroids was significantly associated with a decrement in symbol digit test latency, tapping (TAP) non-preferred hand, and TAP alternating hands measures, representing the executive and motor speed/coordination functions. Khat chewing was associated with TAP preferred and non-preferred hands and serial digit learning measures, representing the memory and motor speed/coordination functions.
Conclusion:
It seems that being exposed to pyrethroids and chewing khat are associated with neurological and neurobehavioral drawbacks among pesticide applicators.
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Affiliation(s)
- Ahmed A Ismail
- Department of Occupational and Environmental Health, College of Public Health, University of Iowa, Iowa City, Iowa, USA. .,Community Medicine and Public Health Department, Faculty of Medicine, Menoufia University, Shebin El-Kom, Egypt
| | - Mohammed Almalki
- Department of Health Service Management and Policy, Faculty of Public Health and Tropical Medicine, Jazan University, Gizan, Saudi Arabia
| | - Ahmed Agag
- Department of Environmental Health, Faculty of Public Health and Tropical Medicine, Jazan University, Gizan, Saudi Arabia
| | - Yahya M Solan
- Public Health Directorate, Ministry of Health, Gizan, Jazan, Saudi Arabia
| | - Ibrahim A Bani
- Vice Presidency for Development and Quality Management, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
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Nakajima M, Hoffman R, Alsameai A, Khalil NS, al'Absi M. Development of the Khat Knowledge, Attitudes and Perception Scale. Drug Alcohol Rev 2018; 37:802-809. [PMID: 29931779 DOI: 10.1111/dar.12828] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 05/09/2018] [Accepted: 05/22/2018] [Indexed: 01/28/2023]
Abstract
INTRODUCTION AND AIMS Khat (Catha edulis) is a stimulant plant widely used in East Africa and the Arabian Peninsula. Tobacco is often co-used with khat and its use has expanded to other parts of the world. Chronic khat use is associated with negative health consequences. There is a lack of research to develop a tool to assess attitudes toward khat use. This study aimed to develop a brief tool to assess attitude and perception related to khat (i.e. the Khat Knowledge, Attitudes and Perception Scale). DESIGN AND METHODS Four-hundred and three participants in Yemen (151 concurrent users of khat and tobacco, 141 khat-only users and 92 non-users of khat and tobacco) were asked about knowledge and attitudes related to khat. A principle component analysis with Promax rotation, Scree-plot and Cronbach's α coefficients was performed to examine psychometric properties of the Khat Knowledge, Attitudes and Perception Scale. RESULTS Principle component analysis revealed five factors: negative beliefs, positive beliefs, idleness, weight control and family issues. Internal consistency of items in negative beliefs, positive beliefs, idleness, weight control and family issues were 0.88, 0.62, 0.62, 0.72 and 0.53, respectively. Greater negative beliefs was inversely correlated with positive beliefs but positively associated with idleness, weight control and family issues. Concurrent users and khat-only users had lower scores on negative beliefs than non-users. Concurrent users had higher scores on positive beliefs than khat-only and non-users. DISCUSSION AND CONCLUSIONS These results provide initial support of the usefulness of the Khat Knowledge, Attitudes and Perception Scale.
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Affiliation(s)
- Motohiro Nakajima
- Department of Family Medicine and Biobehavioral Health, University of Minnesota Medical School, Duluth, USA
| | - Richard Hoffman
- Department of Family Medicine and Biobehavioral Health, University of Minnesota Medical School, Duluth, USA
| | - Abed Alsameai
- Department of Linguistics, Taiz University, Taiz, Yemen
| | | | - Mustafa al'Absi
- Department of Family Medicine and Biobehavioral Health, University of Minnesota Medical School, Duluth, USA
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Ware E, Tura G, Alemu T, Andarge E. Disparities in risky sexual behavior among khat chewer and non- chewer college students in Southern Ethiopia: a comparative cross-sectional study. BMC Public Health 2018; 18:558. [PMID: 29703181 PMCID: PMC5921970 DOI: 10.1186/s12889-018-5405-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 04/04/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Risky sexual behavior (RSB) and its consequence among school adolescents and youths have been well understood. It is still a common practice among college and university students living away from their controlling families compounded with the ever-worsening khat chewing habits. However, the relation between khat chewing and RSB is not well studied particularly among college students in Ethiopia. Hence, this study contributes to the literature by examining disparities of RSB among khat chewer and non-chewer students in Southern Ethiopia with the purpose of improving adolescent and youth health. METHODS An institution-based comparative cross-sectional study was conducted among 1211 college students at Arba Minch town in March 2015. Respondents were selected by employing a simple random sampling technique. Data was collected by using a pre-tested, structured, self- administered questionnaire. The data was entered into Epidata version 3.1 and analyzed using IBM SPSS statistics version 21. Level of statistical significance was declared at a p- value of < 0.05. RESULTS The prevalence of lifetime and current RSB among college students was 40.8 and 36.5% respectively. The lifetime and current prevalence of RSB among khat chewers (82.2 and 30.9%) was significantly higher than non-chewers (74.2 and 27.6%) respectively (P-value = 0.001). Male sex (AOR = 1.82; 95% CI = 1.28, 2.6), urban residence (AOR = 1.63,95% CI = 1.17, 2.28), age of students (AOR = 1.18; 95% CI = 1.09,1.28), living away from family (AOR = 2.45, 95% CI = 1.62,3.7), having high peer pressure (AOR = 2.58, 95% CI = 1.85-3.59), an increase in average grade point (AOR = 0.98, 95% CI = 0.96-0.99), regular attendance of religious institutions (AOR = 0.24, 95%CI = 0.12, 0.42), watching pornographic movies (AOR = 2.51, 95% CI = 1.79,3.51), khat chewing (AOR = 3.02, 95% CI:=1.91,4.76) and alcohol drinking (AOR = 2.26, 95% CI = 1.54,3.35) were factors associated with RSB. CONCLUSIONS Considerable proportions of students were engaged in khat chewing and RSB. RSB was significantly higher among khat chewers as compared to non- chewers. Comprehensive sexuality education was recommended to college communities and by extension to the ministry of health and education to address the identified factors so that RSB can be reshaped.
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Affiliation(s)
- Eyasu Ware
- Department of Public Health Nursing and Health Extension, Arba Minch College of Health Sciences, P.O.Box: 155, Arba Minch, Ethiopia
| | - Gurmesa Tura
- Department of Population and Family Health, Faculty of Public Health, Jimma University, P.O.Box:378, Jimma, Ethiopia
| | - Tsedach Alemu
- Department of Population and Family Health, Faculty of Public Health, Jimma University, P.O.Box:378, Jimma, Ethiopia
| | - Eshetu Andarge
- Department of Reproductive Health and Nutrition, School of Public Health, College of Health Sciences and Medicine, Wolaita Sodo University, P.O.Box:138, Wolaita, Ethiopia.
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The Complete Chloroplast Genome of Catha edulis: A Comparative Analysis of Genome Features with Related Species. Int J Mol Sci 2018; 19:ijms19020525. [PMID: 29425128 PMCID: PMC5855747 DOI: 10.3390/ijms19020525] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 02/03/2018] [Accepted: 02/06/2018] [Indexed: 11/17/2022] Open
Abstract
Qat (Catha edulis, Celastraceae) is a woody evergreen species with great economic and cultural importance. It is cultivated for its stimulant alkaloids cathine and cathinone in East Africa and southwest Arabia. However, genome information, especially DNA sequence resources, for C. edulis are limited, hindering studies regarding interspecific and intraspecific relationships. Herein, the complete chloroplast (cp) genome of Catha edulis is reported. This genome is 157,960 bp in length with 37% GC content and is structurally arranged into two 26,577 bp inverted repeats and two single-copy areas. The size of the small single-copy and the large single-copy regions were 18,491 bp and 86,315 bp, respectively. The C. edulis cp genome consists of 129 coding genes including 37 transfer RNA (tRNA) genes, 8 ribosomal RNA (rRNA) genes, and 84 protein coding genes. For those genes, 112 are single copy genes and 17 genes are duplicated in two inverted regions with seven tRNAs, four rRNAs, and six protein coding genes. The phylogenetic relationships resolved from the cp genome of qat and 32 other species confirms the monophyly of Celastraceae. The cp genomes of C. edulis, Euonymus japonicus and seven Celastraceae species lack the rps16 intron, which indicates an intron loss took place among an ancestor of this family. The cp genome of C. edulis provides a highly valuable genetic resource for further phylogenomic research, barcoding and cp transformation in Celastraceae.
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Mega TA, Dabe NE. Khat ( Catha Edulis) as a Risk Factor for Cardiovascular Disorders: Systematic Review and Meta-Analysis. Open Cardiovasc Med J 2017; 11:146-155. [PMID: 29387278 PMCID: PMC5748832 DOI: 10.2174/1874192401711010146] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 11/11/2017] [Accepted: 11/28/2017] [Indexed: 11/22/2022] Open
Abstract
Background About 20 million people worldwide are believed to be using khat. Although some studies reported that khat chewing might result in cardiovascular disorders, conclusive evidence is limited. Method The objective of this review was to synthesize the best available evidence for the effect of khat on the cardiovascular system. Databases searched were PubMed, Cochrane database of systematic reviews, CINAHL, poplin, LILACS, MedNar and Scopus. All papers included in the review were subjected to rigorous appraisal using the Joanna Briggs Institute (JBI) standardized critical appraisal tool. Review Manager Software (Revman 5.3) was used for meta-analysis and effect size and the 95% confidence interval (CI) was calculated. Result Data was extracted from 10 articles. Our meta-analysis included 9,207 subjects, (2123 chewers and 7084 non-chewers, respectively) to elucidate the effect of khat on heart rate, diastolic and systolic blood pressure. The mean diastolic and systolic blood pressure of khat chewers was higher than the non-chewers with a mean difference of 5.1 mmHg, 95%CI [2.7,7.5] and 7.9 mmHg, 95%CI [2.65, 13.18], respectively. Similarly, the heart rate of the chewers remained consistently higher, making the mean difference of 6.9 beats/min, 95%CI [0.5, 13.3]. In addition, khat was found to have either a causative or worsening effect on stroke, myocardial infarction and heart failure. Conclusion We showed that khat chewing could significantly affect the cardiovascular system through its effect on heart rate and blood pressure. Therefore, health promotion should be aimed to encourage quitting khat chewing.
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Affiliation(s)
- Teshale Ayele Mega
- School of Pharmacy, Institute of Health Science, Jimma University, Jimma, Ethiopia
| | - Nikodimos Eshetu Dabe
- Department of Biomedical Science, College of Health Science, Mizan Tepi University, Mizan Teferi, Ethiopia
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Abebe W. Khat and synthetic cathinones: Emerging drugs of abuse with dental implications. Oral Surg Oral Med Oral Pathol Oral Radiol 2017; 125:140-146. [PMID: 29249517 DOI: 10.1016/j.oooo.2017.11.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 11/08/2017] [Indexed: 01/21/2023]
Abstract
The rising global availability of the stimulant and euphoric substances, khat and synthetic cathinones, has become a cause for concern in many countries, including the United States. Both substances are illegal in United States, although this has not deterred their use. Besides central nervous system effects, these drugs also cause sympathomimetic and orodental adverse effects, similar to those of amphetamine. Although synthetic cathinones are stronger than khat in most cases, the latter additionally contains tannins, which have astringent effects on tissues components, including those in the oral cavity. Recognizing the use prevalence and reported orodental adverse effects of khat and synthetic cathinones, dental practitioners should be more familiar with these substances to optimally treat and educate their patients abusing them. This paper reviews the pharmacology and adverse effects of khat and synthetic cathinones, along with the extent of their use in United States, with particular emphasis on dental implications.
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Affiliation(s)
- Worku Abebe
- Department of Oral Biology/Pharmacology, Dental College of Georgia, Augusta University, Augusta, Georgia, USA.
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Mihretu A, Teferra S, Fekadu A. Problematic khat use as a possible risk factor for harmful use of other psychoactive substances: a mixed method study in Ethiopia. SUBSTANCE ABUSE TREATMENT PREVENTION AND POLICY 2017; 12:47. [PMID: 29096691 PMCID: PMC5668959 DOI: 10.1186/s13011-017-0132-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 10/24/2017] [Indexed: 11/10/2022]
Abstract
BACKGROUND Substance use disorders along with neuropsychiatric disorders contributed about 14% of the global burden of disease. Harmful alcohol use, is a known contributor for many harms (accidents, suicide, violence, and complication of other psychiatric and medical disorders). In the Western countries, alcohol and nicotine are gateway drugs to cannabis use, and cannabis use is a risk factor for other illicit drugs such as cocaine and heroin. Khat use is another psychoactive substance which is common in East African and Arabian Peninsula. But there is a knowledge gap regarding the position of khat use or problematic khat use in sequential progression of different psychoactive substances. Therefore, we aimed to understand and investigate the relationship of problematic khat use and other psychoactive substances in Ethiopia. METHODS Exploratory mixed methods study was employed. Quantitative cross sectional survey was done among 102 khat users, and 4 focus group discussions and 11 in-depth interviews were conducted to understand the pathways between khat use and other psychoactive substances use in 2014. Non random sampling (purposive and snowballing) was employed for both quantitative and qualitative studies. Khat users from khat cafeterias, shops, and from other open markets of khat in Addis Ababa were invited to participate. RESULT Currently significant majorities of khat users (86.3%) used at least one other psychoactive substance after they started khat use. The prevalence of harmful drinking was 53.9% among khat users. Problematic khat use was a significant predictor of harmful drinking (p < 0.05). About one from ten respondents engaged to risky sexual behavior pushed by the effect of khat after chewing. CONCLUSION The proportion of psychoactive substances use especially harmful drinking among khat users was observed higher compared to other cross sectional surveys conducted among general population. In Ethiopia, intervention and policy on harmful alcohol use could consider problematic khat use as one possible risky factor. A rigorous methodology which could test gateway hypothesis of problematic psychoactive substances use could be warranted.
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Affiliation(s)
- Awoke Mihretu
- Department of Clinical Psychology, Amanuel Mental Specialized Hospital, Addis Ababa, Ethiopia. .,Department of Psychiatry, School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia.
| | - Solomon Teferra
- Department of Psychiatry, School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia.,Harvard T.H. Chan School of public Health, Boston, USA
| | - Abebaw Fekadu
- Department of Psychiatry, School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia.,Department of Psychological Medicine, Centre for Affective Disorders, King's College London, London, UK
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