Stephen Antwi

ORCID: 0000-0003-3712-1431
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About
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Research Areas
  • Ethnobotanical and Medicinal Plants Studies
  • Phytochemistry and Biological Activities
  • Pharmacological Effects of Natural Compounds
  • Diverse Scientific Research Studies
  • Natural Antidiabetic Agents Studies
  • Phytochemistry and Bioactive Compounds
  • Asthma and respiratory diseases
  • Rheumatoid Arthritis Research and Therapies
  • Phytochemistry and biological activity of medicinal plants
  • Mast cells and histamine
  • Drug-Induced Hepatotoxicity and Protection
  • Autoimmune and Inflammatory Disorders Research
  • Alkaloids: synthesis and pharmacology
  • Bioactive Compounds and Antitumor Agents
  • Drug Solubulity and Delivery Systems
  • Papaya Research and Applications
  • Pain Mechanisms and Treatments
  • Toxin Mechanisms and Immunotoxins
  • Essential Oils and Antimicrobial Activity
  • Polysaccharides Composition and Applications
  • Allergic Rhinitis and Sensitization
  • Moringa oleifera research and applications
  • Advances in Cucurbitaceae Research
  • Rabbits: Nutrition, Reproduction, Health
  • Morinda citrifolia extract uses

National Centre for Research
2023

University of Ghana
2018-2023

Kwame Nkrumah University of Science and Technology
2014-2022

Kwame Nkrumah University
2020

University of Science and Technology
2020

Most developing countries resort to medicinal plants for treating diseases, but few of these have scientific backing their use. The aim the study was validate traditional use Morinda lucida leaves in inflammation and determine mechanism action.Effect hydroethanolic leaf extract M. (HEML) on localized evaluated using rat paw edema presented by sub-planter injections λ-carrageenan, histamine or serotonin separate experiments. Systemic lipopolysaccharide (LPS)-induced hyperthermia. Antioxidant...

10.1016/j.jtcme.2020.07.001 article EN cc-by-nc-nd Journal of Traditional and Complementary Medicine 2020-08-04

There is a growing need to develop new drugs for type II diabetes mellitus (DM) from plant sources due the high cost and adverse side effects of current drug therapies. To this end, antidiabetic activity aqueous stem-bark extract A. polycarpa (APE) in alloxan-induced diabetic ICR mice was investigated.The effect APE (20, 100 500 mg/kg), glibenclamide metformin as positive controls, were determined over 4 weeks on fasting blood glucose (FBG). An oral tolerance test (OGTT) also conducted. The...

10.1016/j.jtcme.2020.02.001 article EN cc-by-nc-nd Journal of Traditional and Complementary Medicine 2020-02-05

Abstract Theobromine exerts deleterious effects on animal physiology. Removal of theobromine from the millions metric tons cocoa pod husks (CPH) discarded annually could allow for production cheap, CPH-based feed. The aim this study was to evaluate safety and nutritional value bio-detheobrominated CPH in Sprague–Dawley rats. removed by treatment with an isolate Talaromyces verruculosus (TvTD). Substituted feeds containing were formulated replacing 30% or 50% maize content regular rat feed...

10.1038/s41598-020-69763-9 article EN cc-by Scientific Reports 2020-08-04

In Ghana, the encapsulated blend of powdered stem and root bark Cassia sieberiana is prescribed dispensed to patients at Centre for Plant Medicine Research (CPMR), management dysmenorrhea gastric ulcer pain. This current formulation has significant challenges in manufacturing optimization therapeutic outcomes due lack standardization actual quantities extracts obtained from ingestion product. The study sought formulate evaluate capsules using bark. Extraction was undertaken with different...

10.1016/j.sciaf.2020.e00609 article EN cc-by-nc-nd Scientific African 2020-10-24

Introduction: The root bark powder of the medicinal plant Capparis erythrocarpus is used at Centre for Plant Medicine Research (In Ghana) against inflammatory pain disorders. whole destroyed to obtain which constitutes only 11.1 % plant. Hence, going extinct. We therefore sought evaluate anti-inflammatory and analgesic activities bark, stem leaf C. in order explore them as substitute(s) agent bark. Methods: Carrageenan induced paw oedema assay was activity. Hot plate acetic acid writhing...

10.5530/pj.2019.11.82 article EN Pharmacognosy Journal 2019-05-10

IJMBR is a highly brandable 5 letter .com name representing site about health and research. It served as an online platform for the International Journal of Medicine Biomedical Research, open-access journal meant to promote quality research publication in medical sciences.

10.14194/ijmbr.222 article EN International Journal of Medicine and Biomedical Research 2013-08-16

Background: Scoparia dulcis is used in Ghanaian folkloric medicine for the management of asthma and its related complications. This study was therefore aimed at evaluating anti-tussive, muco-suppressant expectorant properties hydroethanolic extract S. (SDE), to ascertain safety use obstructive pulmonary disease management. Methods: The number coughs induced guinea pigs using citric acid concentration phenol red secreted tracheae mice were measured. Preliminary phytochemical analysis...

10.5455/2319-2003.ijbcp20140606 article EN International Journal of Basic & Clinical Pharmacology 2014-01-01

Mist Antiaris is a herbal decoction for treatment of nervous disorders. Safety and efficacy were evaluated in Sprague-Dawley rats human patients, respectively. Acute toxicity was assessed by administration single 5000 mg/kg oral dose to group six rats. For subchronic toxicity, four groups each received water (control) or 10, 100, 200 doses daily eight weeks. Body weight, serum, urine, hematological profile the animals monitored over period. Effects on pentobarbital-induced sleeping time...

10.1155/2019/2607872 article EN BioMed Research International 2019-07-24

Background. In Ghana, Cymbopogon citratus leaves together with guava, pawpaw, and lime are processed into a decoction to treat fever. To encourage its usage, preclinical validation of the safety profile plant is required. The acute subchronic toxicities conventional Soxhlet ethanolic extract in Sprague–Dawley rats were investigated. Methods. Pulverized extracted 98% ethanol using extraction (CSE) method dried. toxicity study, single dose 5000 mg/kg body weight was administered six female 1...

10.1155/2023/8575741 article EN cc-by Journal of Toxicology 2023-12-11

Abstract Background A hydro ethanol extract of the stem bark Holarrhena floribunda (HFE) has been shown to be effective in management acute inflammation. This study was evaluate usefulness for chronic inflammation a murine model. Methods Arthritis induced Sprague-Dawley rats using Complete Freund’s Adjuvant. Anti-arthritic effect evaluated prophylactic and therapeutic treatment models at doses 50, 200 500 mg/kg. Parameters assessed included oedema, serology inflammatory response, bone tissue...

10.1186/s12950-022-00301-2 article EN cc-by Journal of Inflammation 2022-03-05

Abstract Background : Holarrhena floribunda stem bark has anecdotal use in Ghanaian folk medicine for management of inflammatory conditions. This study was conducted to investigate the vivo anti-inflammatory activity extract using models acute inflammation male Sprague Dawley rats, C57BL/6 mice and 36 ICR mice. Methods A 70 % hydro-ethanol (HFE) evaluated at doses 5–500 mg/kg bw. Local anaphylaxis modelled by pinnal cutaneous anaphylactic test. Systemic or sepsis were modeled compound 48/80...

10.21203/rs.3.rs-110342/v1 preprint EN cc-by Research Square (Research Square) 2020-11-18

Knowledge, Attitude and Practice of Malaysian Public University Students on Risk Factors for Cardiovascular DiseasesMardhiah Mahada Ibrahim, Nor Azlina A. Rahman, Iza Mainul Haque

10.7324/japs.2018.8101 article EN Journal of Applied Pharmaceutical Science 2018-01-01

Background: Phyllanthus fraternus is a tropical plant that has numerous pharmacological activities such as blennorrhagia, colic, diabetes, dysentery, fever, flu, tumours, jaundice, vaginitis, dyspepsia, anti-inflammatory, antioxidant, anticoagulant, anti-diabetic, antiviral and analgesic. The study evaluated in vivo anti-plasmodial activity of aqueous ethanol crude extracts using Plasmodium berghei infected Balb/c mice.
 Methodology: preparation the extract was done by boiling 195 g...

10.9734/jpri/2018/v25i430105 article EN Journal of Pharmaceutical Research International 2019-02-27

Abstract Background Holarrhena floribunda (G.Don) T.Durand & Schinz stem bark has anecdotal use in Ghanaian folk medicine for the management of inflammatory conditions. This study was conducted to investigate vivo anti-inflammatory activity extract using models acute inflammation male Sprague Dawley rats, C57BL/6 mice and ICR mice. Methods A 70% hydro-ethanol (HFE) evaluated at doses 5–500 mg/kg bw. Local anaphylaxis modelled by pinnal cutaneous anaphylactic test. Systemic or sepsis were...

10.1186/s12906-022-03565-6 article EN cc-by BMC Complementary Medicine and Therapies 2022-03-19

ABSTRACT Background and aim The lack of standardization scientific validation the use most plant extracts leads to toxicity problems. stem bark extract Annickia polycarpa has been shown possess antioxidant, antidiabetic, analgesic, anti-colitis effects. However, nothing is known about effects prolonged extract. Thus, we investigated acute sub-chronic aqueous (APE) in Sprague-Dawley rats. Experimental procedure LD50 APE (20 mg/kg, 100 500 mg/kg) was studied over 3 months Serum alkaline...

10.1101/2023.09.14.557718 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2023-09-16

The present study was designed to investigate some biochemical parameters associated with acetaminophen induced liver injury on rats treated ethanolic stem-bark extract of Anacardium occidentale (EBAO). Qualitative studies EBAO showed the presence phytochemicals such as polyuronides, phenolic compounds and reducing sugars. Thirty (30) Wistar weighing 168.98 g 292.91 were grouped into five (I, II, III, IV V) six each. curative model applied. Liver Enzyme levels measured prior induction in...

10.47740/328.udsijd6i article EN UDS International Journal of Development 2019-01-01

Background: Pain is a major symptom usually associated with most disease states. Despite the existence of many therapies, management pain remains unsatisfactory globally. Medicinal plants have been used since medieval times and are still being today for treating some ailments. Desmodiumadscendens traditionally treatment epilepsy, pain, inflammatory conditions. However, data on its effect very scanty. Objective: This study sought to investigate antinociceptive an ethanolic extract...

10.46829/hsijournal.2020.12.1.2.71-85 article EN Health Sciences Investigations Journal 2020-12-22

Abstract Ethnopharmacological relevance In Ghanaian folk medicine, Holarrhena floribunda has anecdotal use for the treatment of inflammatory conditions. A hydro ethanol extract stem bark previously been shown to be effective in management acute inflammation and anaphylaxis rodents. Aim study This was aimed at evaluating usefulness H. (HFE) chronic a murine model. Materials Methods Anti-arthritic effect evaluated using Complete Freund’s Adjuvant-induced arthritis male Sprague-Dawley rats....

10.21203/rs.3.rs-126064/v1 preprint EN cc-by Research Square (Research Square) 2020-12-16
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