169,754 results match your criteria: "Guinea; Research and Valorization Center on Medicinal Plants Dubreka[Affiliation]"

The Gulf of Guinea (GoG) is highly vulnerable to sea level rise, with projections indicating a significant increase in permanently inundated land by 2100, ranging from 1,458.1 to 4,331.7 km.

View Article and Find Full Text PDF

Objective: In Papua New Guinea (PNG), antenatal clinic attendance averaged 50% for one or more visits, and 30% for four visits in the last decade. In 2016, the WHO revised its focused antenatal care (ANC) model recommending eight rather than four visits. If implemented, this new model would require additional resources.

View Article and Find Full Text PDF

Asthma is a chronic inflammatory disease characterized by airway hyperresponsiveness, inflammation, and remodeling. Calcium (Ca)-activated chloride (Cl) channels, such as TMEM16A, are inferred to be involved in asthma. Therefore, the present study investigated the therapeutic potential of TMEM16A inhibition in a guinea pig model of ovalbumin (OVA)-induced allergic asthma.

View Article and Find Full Text PDF

Chelerythrine triggers the prolongation of QT interval and induces cardiotoxicity by promoting the degradation of hERG channels.

J Biol Chem

November 2024

Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang Province, China. Electronic address:

Article Synopsis
  • Cardiotoxicity during drug treatment is a significant concern, especially regarding the role of cardiac hERG channels in the heart's action potential repolarization.
  • Chelerythrine shows promise as an anti-cancer agent but its safety profile, particularly concerning cardiac effects, is not well understood.
  • This study finds that Chelerythrine can prolong the QT interval and action potential duration, potentially increasing the risk of cardiac toxicity through enhanced degradation of hERG channels via ubiquitination and lysosomal pathways under hypoxic conditions.
View Article and Find Full Text PDF

Background: Brucellosis in livestock and its transmission to humans through the consumption of contaminated dairy products is an important issue. The introduction of new approaches using immunogenic proteins against and diagnosing brucellosis is a serious issue in human health.

Methods: contains five proteins including: MOXR family ATPase-α2, T9SS C-terminal target domain-containing protein, Cobyric acid synthase, Hypothetical protein, and VirB11 type IV Secretion protein, which were considered and the designed recombinant polypeptide was produced and evaluated.

View Article and Find Full Text PDF
Article Synopsis
  • * This study examines the impact of p38 MAPK inhibition using SB203580 in a guinea pig model, comparing untreated HF rats to those treated with SB203580 and controls, and assessing cardiac function via echocardiography and proteomic analysis.
  • * Results show that SB203580 treatment helps maintain cardiac function in HF by protecting critical proteins and reducing oxidative stress, indicating a potential therapeutic pathway for improving heart health in HF patients.
View Article and Find Full Text PDF

World Health Organization African Region national heads of units of diagnostics and laboratory services meetings proceedings.

BMC Proc

November 2024

WHO Regional Office for Africa, Office of the Assistant Regional Director, Cité du Djoué, Brazzaville, PB06, Republic of the Congo.

Background: In the World Health Organization (WHO) African Region, many cases of serious and preventable diseases remain unmanaged because appropriate and good quality diagnostic support is not available at all levels within countries' health systems. Diagnostic and laboratory services influence the efficiency and effectiveness of both clinical and public health functions, including diagnosis, treatment, health promotion, disease prevention, surveillance and response, and research. Essential to global health security, these services are vital to decision-making processes by clinicians, epidemiologists, public health specialists, and health policymakers.

View Article and Find Full Text PDF

In Conakry, Guinea, like many other African capitals, traffic congestion is a major obstacle to transporting blood samples from peripheral health centres to laboratories where tests are centralised. This situation complicates early HIV testing of HIV-exposed children (i.e.

View Article and Find Full Text PDF

Enhanced pathogenicity and synergistic effects of co-infection with bovine viral diarrhea virus 1 and HoBi-like virus in cattle and guinea pigs.

Front Vet Sci

November 2024

The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China.

Introduction: The Bovine Viral Diarrhea Virus 1 (BVDV1) and HoBi-like virus (BVDV3), both within the same genus, share genomic homology and exhibit low antigenic cross-reactivity despite presenting similar clinical manifestations. In 2021, a bovine respiratory disease complex (BRDC) outbreak on two cattle farms in the Inner Mongolia Autonomous Region of China resulted in ten fatalities.

Methods: Metagenomic and metatranscriptomic analyses were used to identify viral agents, including a co-infection case.

View Article and Find Full Text PDF
Article Synopsis
  • - The text discusses the importance of learning outcomes in education and how integrating "A-SMART" (Action-oriented, Specific, Measurable, Achievable, Relevant, Time-bound) outcomes with the backward design process can enhance curriculum planning.
  • - It introduces a three-stage approach for educators: define desired results, determine acceptable evidence of learning, and plan learning activities, highlighting the significance of starting with action verbs.
  • - By adopting this method, educators can create clearer, more effective learning outcomes that improve assessment practices and educational experiences while addressing potential challenges in the process.
View Article and Find Full Text PDF
Article Synopsis
  • Echovirus 11 is causing increasing cases of neonatal sepsis in Europe and limited reports in West Africa, highlighting a significant public health issue.
  • A study analyzed 23 E11 strains from West Africa using high-throughput sequencing, marking the first molecular characterization of the virus in the region and revealing a new recombinant strain.
  • The research indicates that E11 has evolved into four distinct clades since the 1970s, with instances of the virus spreading from West Africa to Europe, underscoring the need for enhanced surveillance of enteroviruses in Africa.
View Article and Find Full Text PDF

An Alarming Eastward Front of Cassava Mosaic Disease in Development in West Africa.

Viruses

October 2024

The Central and West African Epidemiology (WAVE) for Food Security Program, Pôle Scientifique et D'innovation, Université Félix Houphouët-Boigny, Bingerville 22 BP 582, Côte d'Ivoire.

Begomoviruses are a major threat to cassava production in Africa. Indeed, during the 1990s, the emergence of a recombinant begomovirus (East African cassava mosaic virus-Uganda, EACMV-Ug) resulted in crop devastation and severe famine in Uganda. In 2023, during a pre-survey of cassava farms at Forécariah, South-West Guinea, 22 samples showing peculiar cassava mosaic disease (CMD) symptoms were collected, and subsequent laboratory analysis confirmed the presence of EACMV-Ug in the samples.

View Article and Find Full Text PDF

Modern agriculture faces the challenge of increasing production without expanding cultivated areas, promoting sustainable practices that ensure food security and environmental preservation. Integrated crop-livestock systems (ICLSs) stand out as an effective strategy, diversifying and intensifying agricultural production in a sustainable manner, ensuring adequate soil cover, and improving nutrient cycling efficiency. Thus, this study aimed to explore and compare integrated crop-livestock systems with Zuri guinea grass ( cv.

View Article and Find Full Text PDF

Automaticity of the Pulmonary Vein Myocardium and the Effect of Class I Antiarrhythmic Drugs.

Int J Mol Sci

November 2024

Department of Pharmacology, Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama Funabashi, Chiba 274-8510, Japan.

The pulmonary vein wall contains a myocardial layer whose ectopic automaticity is the major cause of atrial fibrillation. This review summarizes the results obtained in isolated pulmonary vein myocardium from small experimental animals, focusing on the studies with the guinea pig. The diversity in the action potential waveform reflects the difference in the repolarizing potassium channel currents involved.

View Article and Find Full Text PDF

Research Objective: This study explored the effects of long-term cold stress (CS) on aortic vascular function in guinea pigs.

Research Methods: Hartley guinea pigs (n = 32) were divided into the following groups: atherosclerosis (AS), CS, and menthol-stimulated (M), and control (C). On days 1, 15, 30, 45, and 60, guinea pigs in the AS, CS, and M groups were intraperitoneally injected with bovine serum albumin.

View Article and Find Full Text PDF
Article Synopsis
  • Neglected tropical diseases (NTDs) are a group of twenty diseases affecting marginalized populations in tropical and subtropical regions, with five classified as preventive chemotherapy diseases.
  • A study in Guinea focused on healthcare providers' knowledge, attitudes, and practices regarding these PC-NTDs, using an electronic questionnaire for data collection and analysis.
  • Results showed that while most providers had heard of onchocerciasis and lymphatic filariasis, knowledge about other diseases like geo-helminthiasis and schistosomiasis was low, indicating a need for improved training and resources in managing these conditions.
View Article and Find Full Text PDF

Application of Monoclonal Anti-Mycolate Antibodies in Serological Diagnosis of Tuberculosis.

Trop Med Infect Dis

November 2024

Future Production: Chemicals, Council for Scientific and Industrial Research, Pretoria 0081, South Africa.

Article Synopsis
  • - Patient loss to follow-up due to expensive and centralized diagnostics for tuberculosis is a major challenge, stressing the need for a more accessible testing method.
  • - Current biomarkers, specifically antibodies against mycolic acids in mycobacterial cell walls, show potential but are hard to detect with typical rapid tests because they are of low affinity.
  • - Researchers have developed a new method for detecting mycolic acid antibodies using engineered monoclonal antibodies, leading to the creation of a novel lateral flow immunoassay called MALIA, which shows promise for practical tuberculosis testing.
View Article and Find Full Text PDF

Neglected tropical diseases (NTDs) with skin manifestations present a significant health and societal problems challenge worldwide. This study aimed to analyzed factors associated with the knowledge, attitudes and practices (KAPs) of primary healthcare workers (HCW) concerning NTDs with skin manifestations in the Dakar region of Senegal. We conducted a cross-sectional study utilizing a semi-structured questionnaire which was administered to eligible HCW (general practitioners, nurses and midwives) working at the 24 health centers located in the Dakar region.

View Article and Find Full Text PDF
Article Synopsis
  • Snakebite envenomation is a significant health issue in rural areas, with a study in Burkina Faso revealing that 42% of the 846 patients experienced complications after being bitten.
  • Complications were categorized into local issues such as wounds (23.2%) and systemic problems like hemorrhage and shock (34.3%), with 7.6% of those affected dying from their injuries.
  • Key factors that increased the risk of complications included living in rural areas, the application of tourniquets, the presence of abnormal vital signs, and a lack of antivenom treatment, emphasizing the need for better access to treatment and awareness.
View Article and Find Full Text PDF

This study documents the experiences of health system personnel in the implementation of mass distribution campaigns for the control of lymphatic filariasis in rural Guinea. This was an exploratory qualitative study using data collected from implementing actors of mass distribution campaigns in the Boké health district. The results showed four main facilitators of mass distribution campaign rollout in the Boké health district: (i) support to the district teams in the organization of the campaigns; (ii) involvement of community-based associations in social mobilization; (iii) strong adherence of the communities to the different mass distribution campaigns, facilitated through the involvement of community relays, who are members of these communities, in the distribution of drugs; and (iv) transparency in the allocation of incentives to drug dispensers and supervisors.

View Article and Find Full Text PDF

Objective: To use animal pharmacokinetic data and FluidSIM modeling to estimate human dexamethasone perilymph concentrations from plasma concentration measurements over time following a single intratympanic administration of SPT-2101.

Study Design: Perilymph and plasma dexamethasone concentrations were measured in guinea pigs and African green monkeys over 3 to 6 weeks post-intratympanic administration of SPT-2101. Plasma concentrations of dexamethasone were measured in Ménière's disease patients post-intratympanic administration of SPT-2101.

View Article and Find Full Text PDF

Bovine viral diarrhea virus (BVDV) is among the common bovine pathogens worldwide. One of the prominent protection measures of BVDV is vaccination. This study aimed to determine the growth characteristics, inactivation kinetics of vaccine candidates using local BVDV strains [TR-26 (BVDV-1f), TR-21 (BVDV-1l), and TR-15 (BVDV-2b)], and the serological response in experimental animals to inactivated BVDV vaccine formulations prepared with different adjuvants.

View Article and Find Full Text PDF

Antigenicity evaluation of lac color and exploratory study for identifying potential biomarkers of anaphylaxis.

Lab Anim Res

November 2024

Laboratory Animal Medicine, Graduate School of Translational Medicine, College of Medicine, Seoul National University, 103, Daehak-ro Jongno-gu, Seoul, Republic of Korea.

Background: Lac color, a natural red dye derived from the larvae of laccifer lacca kerr, is one of the most commonly used substances in food. To date, no studies have reported on the antigenicity of lac color and the other biomarkers that can determine anaphylactic reactions. To address this, we evaluated the antigenicity of lac color through active systemic anaphylaxis (ASA) in addition to identifying potential biomarkers performing exploratory studies.

View Article and Find Full Text PDF

Metabolic Characteristics of Sclera in Lens-Induced Myopic Guinea Pigs.

Invest Ophthalmol Vis Sci

November 2024

Shanghai Institute of Infectious Disease and Biosecurity, Zhongshan Hospital, Fudan University, Shanghai, China.

Article Synopsis
  • Myopia in guinea pigs was induced using special lenses, and researchers investigated the metabolic changes in the sclera, focusing particularly on amino acid levels.
  • Metabolomic analyses revealed significant alterations in metabolic pathways linked to myopia, highlighting reductions in specific amino acids in the affected sclera.
  • Supplementing with glycine was found to counteract some effects of myopia, increasing collagen levels, inhibiting eye elongation, and reversing changes in certain proteins associated with this condition.
View Article and Find Full Text PDF

Evaluation of Vaccines and Therapeutics Against Ebolaviruses in the Domestic Ferret.

Methods Mol Biol

November 2024

Galveston National Laboratory and Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA.

Filoviruses, including Ebola and Marburg viruses, have caused periodic outbreaks of severe hemorrhagic disease in humans and nonhuman primates (NHP), resulting in major public health emergencies primarily in endemic areas. Filovirus disease has also been exported to developed nations, where it has been equally disruptive. There are four ebolaviruses (Ebola virus, Sudan virus, Bundibugyo virus, and Taï Forest virus) and two marburgviruses [Marburg virus (MARV) and Ravn virus] known to cause disease in humans, yet vaccines and therapeutics have only been approved for Ebola virus.

View Article and Find Full Text PDF