Use of medicinal plants as a remedy against lymphatic filariasis: Current status and future prospect.

Despite the successes achieved so far with the Global Programme to Eliminate Lymphatic Filariasis, there is still an appreciable number of lymphatic filarial patients who need alternative treatment and morbidity management strategies. The unresponsiveness of some cohorts to the drugs used in the mass drug administration program is currently raising a lot of questions and this needs urgent attention. Natural medicinal plants have a long-standing history of being effective against most disease conditions. Countries such as India have been able to integrate their natural plant remedies into the treatment of lymphatic filarial conditions, and the results are overwhelmingly positive. Components of Azadirachta indica A. Juss, Parkia biglobosa, Adansonia digitata, and Ocimum spp have been shown to have anti-inflammatory, anticancerous, and antimicrobial activities in animal models. Therefore, this review calls for attention toward the use of natural plant components as an alternate treatment against lymphatic filariasis to help reduce the World Health Organization's burden of providing drugs for people in need of treatment every year.

Risk factors for COVID-19 virus infection among health workers: A case-control study in the Bono East Region of Ghana.

BACKGROUND: Disproportionately high rates of COVID-19 infection among health workers prompts the need to identify the risk factors to help guide the design and implementation of interventions. The aim of this study was to characterize the risk factors for COVID-19 infection among health workers. METHODS: A case-control study was designed to recruit 154 health workers who tested positive for the COVID-19 virus and 308 who tested negative from 8 hospitals and 11 health directorates in the Bono East Region of Ghana. Crude and adjusted logistic regression analysis was used to determine risk factors. RESULTS: Hand hygiene compliance for the recommended moments ranged from 55.3% to 77.4%. Personal protective equipments (PPE) use was 59.5% when patients' COVID-19 status was unknown and at least 90.7% when patient was positive. We identified years of practice experience (adjusted odds ratio (AOR) = 1.81; 95% CI: 1.07, 3.07; P = .028), adherence to infection prevention and control (IPC) when in contact with patients whose COVID-19 status is unspecified (AOR = 1.71; 95% CI: 1.09, 2.70; P = .020) and type of facility (AOR = 1.69, 95% CI: 1.09, 2.62; P = .019) as risk factors. CONCLUSION: The findings underscore the need for health workers to improve in COVID-19 risk perception.

Antioxidant and anti-inflammatory properties of "Limolanii" grass and perceptions of locals on its survival in the era of changing climate.

The aromatic Spear grass Hyparrhena rufa (locally called "Limolanii") found in the Saboba District of the Northern Region of Ghana is ingeniously used for dietary, medicinal, and other purposes. Focus group discussions were conducted in communities where "Limolanii" grows to assess the local perception of the importance of the grass and changing climate impacts on its continued existence. Findings indicated that the plant is of immense importance to the locals but has not been validated scientifically and reported for its current use. The communities are also hopeful of future socio-economic benefits of "Limolanii" but expressed concern about the lack of remediation practices to address issues of climate change, increased use of agrochemicals, urbanization, etc., which can lead to the extinction of the grass. "Limolanii" was therefore evaluated for its nutritional and anti-nutritional content by proximate analysis and ethanolic extract evaluated for some medicinal properties. The extract was assessed for its anti-inflammatory property using the carrageenan-induced oedema in chicks' model while antioxidant property evaluated using DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging activity, Phosphomolybdenum (Total Antioxidant Capacity), Total Phenol (Folin-Ciocalteu), and Total Flavonoid Content (Aluminium-chloride colorimetric) assays. The plant showed good nutritional content, extract exhibited a dose-dependent inhibition of oedema with maximal percentage inhibition of 41.05% at 300 mg/kg body weight and noticeable antioxidant activities. Flavonoids, coumarins, and other phytochemicals detected in the plant could be responsible for these activities, however, at certain levels, these phytochemicals could act as anti-nutrients. "Limolanii" exhibits medicinal properties backing its use traditionally as food supplements and herbs, hence the need to explore its possible commercial cultivation and embark on community sensitization to encourage people to protect and expand its production.

Antidiabetic effect of Chrysophyllum albidum is mediated by enzyme inhibition and enhancement of glucose uptake via 3T3-L1 adipocytes and C2C12 myotubes

Objective: To investigate the in vivo and in vitro antidiabetic potential of Chrysophyllum albidum. Methods: The effects of oral treatment with hydro-ethanolic extract (125, 250 and 500 mg/kg) of the stem bark of Chrysophyllum albidum and glibenclamide for 21 d on glucose level, serum enzyme markers for liver function, lipid profile, total protein, serum urea, serum creatinine, and body weight were evaluated in experimental diabetic rats administered with 45 mg/kg of streptozotocin. In vitro assays including glucose uptake in C2C12 cells and 3T3-L1 adipose tissues, α-glucosidase and α-amylase inhibition were employed to evaluate the possible mechanism of hypoglycemic action of the extract. DPPH and nitric oxide radical antioxidant activity of the extract was also measured. Results: The increased levels of blood glucose, triglycerides, low-density lipoprotein, total cholesterol, serum aspartate, and alanine transaminases, creatinine, and urea in the diabetic animals were reduced significantly (P<0.01) after treatment with Chrysophyllum albidum extract. The decreased total protein and high-density lipoprotein concentrations were normalized after treatment. In addition, the extract significantly (P<0.01) increased the transport of glucose in 3T3-L1 cells and C2C12 myotubes and exhibited considerable potential to inhibit α-amylase and α-glucosidase. It also demonstrated potent antioxidant action by scavenging considerably DPPH and nitric oxide radicals. Conclusions: Chrysophyllum albidum stem bark extract exhibits considerable antidiabetic effect by stimulating glucose uptake and utilization in C2C12 myotubes and 3T3-L1 adipocytes as well as inhibiting the activities of α-amylase and α-glucosidase.

Protection effect of the anthraquinones, cassiatorin and aurantio-obtusin from seeds of Senna tora against cowpea weevil attack

Objective:To explore the potential insecticidal,ovipositor deterrent and antifeedant effects of ethyl acetate extract of the seeds of Senna tora (Syn.Cassia tora) against cowpea weevil (Callosobruchus maculaws).Methods:The activities were evaluated using standard protocols.In these bioassays,the cowpea seeds were used directly as an insect feed.The activity of the extract and isolated compounds were tested at concentrations of 100,200 and 300 μg/mL and compared to neem oil and cinnamaldehyde (as standard positive controls).Phytochemical analysis of the ethyl acetate extract was done through a number of chromatographic techniques and the structures of the isolated compounds were established through comprehensive spectroscopic analysis including 2D-NMR and ESI-MS studies.Results:Fractionation of the active ethyl acetate extract resulted in the isolation of one known anthraquinone,aurantio-obtusin (1) and a novel compound that was named as cassiatorin (2).Compounds 1 and 2 showed comparable insect antifeedant properties with the positive controls while their insecticidal and ovipositor deterrent effects were far superior to the standard controls.Contusions:It is thus concluded that Senna tora extracts and the isolated compounds (1 and 2) may be employed in the postharvest management of stored cowpea seeds and as other crop protectants.

Pharmacognostic standardisation of Hilleria latifolia (Lam.) H. Walt. (Phytolaccaceae)

To establish the pharmacognostic characters for the correct identification and quality control of Hilleria latifolia (H. latifolia), an important herb in Ghanaian folklore medicine, for the treatment of infections, pain and inflammation. Methods: The macro-morphological, qualitative and quantitative microscopic features, physicochemical and phytochemical features of the medicinally used parts of H. latifolia were evaluated using standard methods. Results: The plant has simple, alternate leaves with entire margin. The lamina is ovate to broadly lanceolate with an acuminate apex. It is hypostomatic with anomocytic stomata. The plant contains abundant prismatic crystals in all parts. Starch grains abound in the roots. The quantitative indices of the leaf and physicochemical parameters have also been established. Conclusions: The pharmacognostic features established in this study may be used as part of the pharmacopoeial standard for the correct identification and quality control of H. latifolia.