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1.
Br Poult Sci ; 54(4): 545-51, 2013.
Article in English | MEDLINE | ID: mdl-23906223

ABSTRACT

1. Two experiments were designed to investigate the effects of mixing eggs of different genotype and incubating with different CO2 concentrations on embryonic parameters. Half of the eggs were incubated in a CO2 controlled incubator (VCO2) during the first 10 d of incubation and the other half was incubated at standard incubation ventilation rate (SV). 2. From 10 to 18 d of incubation, thick albumen and embryos were weighed. Blood samples were collected at d 18 of incubation, at internal pipping and at hatch for determination of triiodothyronine (T3), thyroxine (T4) and corticosterone concentration. During the last 2 d of incubation, hatching events of individual eggs were monitored every 2 h. 3. From 4 to 5 d of incubation in the SV group of Experiment 1, pH values of Ross strain chickens were lower than those of Isa Brown. From d 12 of incubation onwards, Ross embryos grew faster than those of Isa Brown. At 14 and 16 d of incubation, Ross eggs in the CO2 controlled incubator had lower albumen weights compared to all other treatments. 4. T3 concentrations in Ross embryos were higher than those of Isa Brown embryos. Chicken weight at hatch was in the following order: Isa Brown SV < Isa Brown VCO2 = Ross SV < Ross VCO2. 5. In Experiment 2, incubation time of VCO2 eggs until internal pipping, external pipping and hatch was significantly shorter than that of SV eggs. 6. It was concluded that mixing of hatching eggs of differential embryo developmental trajectory affects their hatching process.


Subject(s)
Carbon Dioxide/metabolism , Chickens/growth & development , Chickens/metabolism , Corticosterone/blood , Thyroxine/blood , Triiodothyronine/blood , Animals , Body Weight/drug effects , Chick Embryo/drug effects , Chick Embryo/growth & development , Chick Embryo/metabolism , Chickens/genetics , Dose-Response Relationship, Drug , Incubators/veterinary , Ovum/drug effects , Ovum/growth & development , Ovum/metabolism , Random Allocation
2.
Int J Biomed Sci ; 9(4): 255-9, 2013 Dec.
Article in English | MEDLINE | ID: mdl-24711763

ABSTRACT

Plumeria alba Linn (Apocynaceae) is used in Togolese traditional medicine to treat diabetes mellitus and wounds. The present investigation was carried out to evaluate the toxicity of hydroalcoholic extract of Plumeria alba roots in Sprague Dawley rats. The acute toxicity test was conducted by administering orally dose of 5 g/Kg. General behavior and mortality were examined for up to 14 days. The sub-acute toxicity test was performed by daily gavage at 250, 500 and 1000 mg/Kg for 28 days. Body weight and blood glucose were measured weekly. Hematological and biochemical parameters, relative organ weight were determined at the end of the 28 days administration. In acute study, no adverse effect of the extract was observed at 5.0 g/Kg. Sub-acute oral administration of the extract at the dose up to 1000 mg/Kg did not induce death or significant changes in body weight, relative weight of vital organs, hematological parameters and was not associated with liver and kidney toxicity.

3.
Med Sante Trop ; 22(1): 54-60, 2012.
Article in French | MEDLINE | ID: mdl-22868727

ABSTRACT

INTRODUCTION: Ultrasonography is an important nonirradiating diagnostic medical imaging procedure, frequently used, especially in urgent circumstances. This relatively inexpensive noninvasive examination makes it possible to diagnose disorders in various parts of the human body, by examining, for example, the abdomen and pelvis, the cardiovascular system, and the muscles and joints. Ultrasound is also an operator-dependent examination, in that the quality of the result depends on precision in the manipulation of the probe. Unfortunately, many small medical centers and isolated sites do not have an appropriate well-trained sonographer to perform initial evaluations, and an untrained operator cannot capture the appropriate echographic views required for a safe diagnosis of current patients, even with realtime vocal guidance (personal data). The lack of experienced physicians or qualified technicians means that diagnostic ultrasound is not always accessible to patients for rapid examination worldwide, especially in Africa, Amazonia or near the North or South Poles. This situation has led to the development of a new concept of telemedicine: telesonography, with a remote ultrasound diagnosis either in real time (synchronous) or delayed (asynchronous; store-and-forward). These systems of real-time telesonography and data transmission require expensive and complex technology with sophisticated equipment not available in many developing countries. The purpose of this study is to design a low-cost real-time system of telesonography for teleconsultations with experts and a delayed telediagnostic mode between isolated peripheral hospitals and a University Hospital center (UHC). METHODS AND MATERIALS: An IP camera and an internet video server were installed in a geographically isolated site equipped with an ultrasound machine and an operator with basic training in its use. Synchronous teleconsultation (second-opinion diagnosis) is possible via internet with a UHC expert. If no ultrasound operator is available at the isolated center, volume capture-and-store software is used. Later on, the UHC expert uses Echo-Cnes 3D software to reconstruct the organs scanned. The expert can then navigate within the reconstructed volume and display any plane. Volume capture is performed by tilting (± 40°) to both sides vertically to the skin. To locate the probe on the organ acoustic window, the novice operator uses acoustic window mapping designed by our laboratory (UMPS-Tours). The system was tested between the Tsévié regional hospital in Togo (40 km from Lomé, Togo, and 4500 km from Tours, France) and the UHC at Lomé and the Trousseau UHC in Tours. RESULTS: With an average internet connection of 2 Mbps, the quality of transmission of the background video and ultrasound sequence videos from Tsévié towards Lomé was satisfactory (16 images/s) with a maximal transmission delay of 1.5 s (almost in real time). A video conference between the Trousseau UHC in Tours, the UHC Campus in Lomé and the Tsévié Hospital was possible and the bandwidth allowed the Lomé experts (radiologists) to perform real-time telesonography with very satisfactory results (ultrasound diagnoses obtained) for abdominal (n = 5), pelvic (n = 3), obstetric (n = 2), prostate (n = 2) and mammary (n = 2) ultrasound, both normal and pathological. Because the doctors at Tsévié had minimal experience with ultrasound, complete ultrasound diagnoses were obtained by combining remote voice instruction for image capture and full diagnosis by Echo-Cnes. Asynchronous telediagnosis was also performed with Tsévié operators who lacked ultrasound expertise but could perform the required tilt movements (after 3 training sessions). The expert at Trousseau UHC performed real-time telesonography with the Tsévié Hospital for two cases requiring abdominal images and another viewing of the prostate. He also performed asynchronous reconstruction of the abdominal organs with Echo-Cnes. A demonstration seminar of our platform was organized successfully for 2 days during the 9(th) Congress of the French-speaking Black Africa Society of Radiology (SRANF in French) held from 4 till 6 May 2011 at the hotel EDA OBA. During this seminar, 4 ultrasound teleconsultations were performed from the hotel by eminent African radiologists. DISCUSSION AND CONCLUSION: This preliminary study, although limited in the number of patients, allowed us to assess the technical features of our telesonography system. Togo, a developing country with a very modest infrastructure for information and communication, was an ideal site for a first test of this platform. Our system of remote ultrasound requires the local patient center to be equipped simply with a 2D ultrasound machine. The cost is quite low, in comparison to the asynchronous techniques requiring 3D devices. The high cost of 3D or 4D ultrasound machines and their fragility make it difficult to install them at the isolated sites and was a serious obstacle in the development of this system. If the center already has a 2D device and a computer, the cost to equip it with the remaining communications materials is 1,500 €. The experience in Togo clearly highlighted the possibility of teletraining and complete teleradiology with our system. The next stage of this work will seek to validate the results of this preliminary experience on a larger sample with more precise assessment criteria in 2012. The results will allow the widespread dissemination and routine use of this system in developing countries.


Subject(s)
Remote Consultation , Ultrasonography , Humans , Time Factors , Togo
4.
Diagn Interv Imaging ; 93(7-8): 639-42, 2012 Jul.
Article in English | MEDLINE | ID: mdl-22683232

ABSTRACT

Many medical centres are equipped with a sonograph. However, a sonographist is not always present or is not trained in all of the specialised domains of sonography. . A sonogram is not always possible due to a lack of physicians. This situation has given rise to the concept of remote-controlled sonography: tele-sonography, a medical procedure used in remote sonographic diagnosis in real time or deferred time. Tele-sonography can now be carried out in real time by the transmission of the expert's procedure (robotic system) or by the use of a 3D sonograph in real time. These modes of real time tele-sonography rely on expensive technologies requiring budgets and an infrastructure that is not always possible in developing countries where the needs in tele-medicine are increasing. This paper aimed to present a preliminary evaluation of a "low cost" system of sonographic tele-expertise in real time and the deferred sonographic telediagnosis accompanied by a tele-mammography between expert sites (university hospitals) and isolated sites (peripheral hospitals, dispensaries).


Subject(s)
Mammography , Telemedicine , Ultrasonography , Humans , Pilot Projects , Togo
5.
Article in English | MEDLINE | ID: mdl-23983395

ABSTRACT

Vitex doniana is traditionally used in Togo to treat various diseases including wounds. The aim of this work was to evaluate the efficiency of Vitex doniana on cutaneous wound healing. Wounds were induced in ICR mice divided into four groups as following: Group I received carbopol 974P NF empty gel, Groups II and III were treated topically with carbopol gel containing 2.5% and 5% of Vitex doniana extract. Group IV received Betadine® 10% as standard drug. The efficacy of treatment was evaluated by planimetry and histological analysis. We secondary used the gel containing Vitex doniana at 2.5% and the pure extract at 10 mg/ml on the model of ear edema induced by xylene. Skin toxicity test was performed with the gel containing Vitex doniana at 5% and the pure extract at 30 mg/ml. Vitex doniana at 5% and 2.5% provided better wound contraction (91.14% and 86.38%) at day 12 post-excision when compared to control (51.15%). The results of histological evaluation supported the outcome of excision wound model. Moreover Vitex doniana inhibited significantly edema induced by xylene when compared to control (p< 0.05). In skin toxicity test, no abnormal symptoms were developed over 14 day-time period. Vitex doniana inhibits the topical inflammation and accelerate cutaneous wound repair.


Subject(s)
Inflammation/prevention & control , Phytotherapy , Plant Extracts/pharmacology , Skin/drug effects , Vitex , Wound Healing/drug effects , Animals , Edema/chemically induced , Edema/prevention & control , Inflammation/chemically induced , Inflammation/pathology , Mice , Mice, Inbred ICR , Skin/injuries , Skin/pathology , Treatment Outcome , Xylenes
6.
Pak J Biol Sci ; 14(6): 392-8, 2011 Mar 15.
Article in English | MEDLINE | ID: mdl-21902063

ABSTRACT

The purposes of this study were: (1) to describe the genetic variability of HIV strains found in Burkina Faso, (2) to characterize non-B HIV strains mutation profiles selected by ARVs and (3) to detect possible resistances induced by ARV drugs. From 30 October 2002 to 20 November 2003, 132 HIV 1-positive patients taking Highly Active Antiretroviral Therapy (HAART) for more than one year in Bobo-Dioulasso and Ouagadougou were included. T-CD4+ lymphocytes count was done using Dynabeads technique while genotypic test and ARV-resistance tests were conducted using Pol sequencing that codes for reverse transcriptase reverse, integrase and protease. Due to undetectable viremia, 86 samples out of 132 could not be characterized. Whereas in the 46 others that had a viral load exceeding 1000 copies mL(-1), the following HIV-1 subtypes were identified: CRF06 (54,55%); CRF02(38,63%); CRF01 (4,55%) and subtype A (2,27%). In addition, several mutations related to PI, NRTI and NNRTI resistance were isolated in 27 samples. This study found a huge genetic HIV-1 polymorphism in Burkina Faso. The level of acquired resistance to ARV after one year of treatment amounted 20.4%. These results clearly show that there is imperative need to set up an ARV resistance surveillance network in Burkina Faso to guide treatment strategies and follow the extension of the phenomenon in the country.


Subject(s)
HIV Infections/virology , HIV-1/genetics , Adolescent , Adult , Antiretroviral Therapy, Highly Active , Base Sequence , Burkina Faso , Cross-Sectional Studies , DNA, Viral/genetics , Drug Resistance, Viral/genetics , Female , Genes, Viral , Genes, pol , Genotype , HIV Infections/drug therapy , HIV-1/drug effects , Humans , Male , Middle Aged , Mutation , Phylogeny , Polymorphism, Genetic , Young Adult
7.
Pathol Biol (Paris) ; 59(5): 269-74, 2011 Oct.
Article in French | MEDLINE | ID: mdl-19942375

ABSTRACT

OBJECTIVES: The study, which is a ethnobiologic characterization, investigated α(1)-antitrypsin gene polymorphism in the togolese ethnic groups. We aimed to determine the existence of rare or deficient alleles predisposing to pulmonary or hepatic genetic diseases. PATIENTS AND METHODS: We focused our study on healthy subjects of two samples by comparing 205 Adélé from relative isolated ethnic group alive in mountain region and 255 subjects from pluriethnic population living on Atlantic coastal region. Data analysis was performed by α(1)-antitrypsin level quantification and serum isoelectric focusing. RESULTS: The two alleles Pi(M) et Pi(F) frequencies are respectively 0.834 and 0.166 in Adélé; 0.989 and 0.011 in the subjects from pluriethnic population. Phenotypes MM and FM distribution in the two groups is significantly different (p<0.001). However, α(1)-antitrypsin polymorphism does not significantly influence proteinic and lipidic profiles of the subjects in the two samples. CONCLUSION: The Pi(F) allele of α(1) antitrypsin is rare allele in the world global populations. Its very high frequency in Adélé explained by preferential endogamic marriage in this ethnic group. Compared to the subjects from pluriethnic population, more than 30 Adélé subjects present a higher risk to develop pulmonary diseases according to isoform F properties.


Subject(s)
Gene Frequency , Phenotype , alpha 1-Antitrypsin/genetics , Adult , Ethnicity/genetics , Female , Genetic Predisposition to Disease , Humans , Isoelectric Focusing , Liver Diseases/genetics , Lung Diseases/genetics , Male , Polymorphism, Genetic , Togo , alpha 1-Antitrypsin/blood
8.
J Ethnopharmacol ; 134(1): 183-90, 2011 Mar 08.
Article in English | MEDLINE | ID: mdl-21167269

ABSTRACT

BACKGROUND: Malaria continues to be of great concern in Togo, as it accounts for high mortality rates, principally in children. Although plant-based medicines are the only means in major malarious regions of the country, still very little is known about the medicinal plants and medical practices of the indigenous people. OBJECTIVE: The present study aimed to document the indigenous medicinal plant utilization for the management of malaria and related symptoms in Togo Maritime Region. METHODOLOGY: Fifty Traditional Healers (TH) were selected with the help leaders of Togolese Traditional Healers Associations and information on their knowledge on the use of plants for malaria therapeutic purposes was gathered using a semi-structured interviews. RESULTS: After enquiries, 52 plant species belonging to 49 genera and 29 families were recorded. The most represented families were Rubiaceae and Rutaceae with four species each. Traditional healers agreed more in the treatment of malaria (ICF=0.70), fever (ICF=0.33) and anemia (ICF=0.20). For the treatment of malaria, 38.46% (20/52) of the species cited in the study were of high fidelity level (FL=100%). The leaves (58.22%), leafy stem (33.78%) and fruits (8.52%) were the most used parts in concoctions. The main mode of preparation was decoction (69%) and the administration was essentially by oral route (79%) and body-bath (14%). CONCLUSION: The issue of the study showed that Togo Maritime Region TH have a good knowledge of antimalarial plants. However the study must be extend to the whole country to lead to innovative strategies in malaria control. Such results could be a starting point for in vitro antimalarial screenings.


Subject(s)
Antimalarials , Plants, Medicinal/classification , Humans , Medicine, African Traditional , Togo
9.
Med Trop (Mars) ; 70(3): 241-4, 2010 Jun.
Article in French | MEDLINE | ID: mdl-20734590

ABSTRACT

BACKGROUND: Monitoring the antibiotic resistance of microorganisms in a specific geographic area can be useful in developing new approaches to first-intention antibiotherapy. OBJECTIVE: The purpose of this study was to describe the evolution of resistance of Staphylococcus aureus to antibiotics routinely used at Saint Camille Medical Centre in Ouagadougou, Burkina Faso from 1996 to 2006. METHOD: Strains of S. aureus, isolated from various pathologic sources were tested to determine their susceptibility to antibiotics. Sensitivity tests were performed in accordance with the guidelines of the Antibiogram Committee of the French Society for Microbiology (version 2007). RESULTS: During the study period, 1160 staphylococci strains were isolated including 73.45% identified as S. aureus. Susceptibility tests demonstrated a significant increase in resistance to beta-lactam antibiotics. The proportion of strains showing resistance to ampicillin reached 58.29% in 2000. Resistance to these antibiotics regressed significantly from 2000 to 2006. Resistance to pristinamycin and erythromycin showed a tendency to increase while resistance to gentamicin and oleandomycin showed no statistically significant change. CONCLUSION: This study demonstrated that S. aureus was the most common Staphylococcus genus present at the center and that it was resistant to several antibiotics. Reducing use of beta-lactam probably accounted for the significant decline in resistance to this type of antibiotic. Care should also be given to the use of other antibiotics such as pristinamycin and erythromycin since resistance appears to be increasing.


Subject(s)
Academic Medical Centers , Anti-Bacterial Agents/pharmacology , Drug Resistance, Multiple, Bacterial , Staphylococcal Infections/microbiology , Staphylococcus aureus/drug effects , Adult , Ampicillin/pharmacology , Burkina Faso , Erythromycin/pharmacology , Female , Gentamicins/pharmacology , Humans , Male , Microbial Sensitivity Tests , Oleandomycin/pharmacology , Pristinamycin/pharmacology , Retrospective Studies , Sputum/microbiology , Staphylococcal Infections/drug therapy , Suppuration/microbiology , Urine/microbiology , beta-Lactams/pharmacology
10.
Ann. afr. méd. (En ligne) ; 3(4): 560-565, 2010.
Article in French | AIM (Africa) | ID: biblio-1259134

ABSTRACT

But : Evaluer l'influence du tabagisme et du niveau de dependance nicotinique sur la variation de la lactatemie pendant l'effort et apres la recuperation chez des sportifs. Materiel et methodes : 126 footballeurs (63 fumeurs et 63 non fumeurs) evoluant dans le championnat d'elite congolais ont ete soumis a un test d'effort rectangulaire et sous maximal; sur un cycloergometre. Des dosages repetes de lactates sanguins ont ete effectues et les variations de la lactatemie durant et apres l'effort ont ete comparees entre les deux groupes; en fonction de la dependance nicotinique. Resultats : nous avons observe une evolution de la lactatemie en deux phases dans les deux groupes ; une phase croissante et une decroissante. La lactatemie etait toutefois plus elevee lors de la phase croissante (p0;001); de meme que la vitesse d'elimination des lactates etait lus lente chez les fumeurs. Le taux des lactates etait directement proportionnel au degre de dependance nicotinique (p0;01). Conclusion : le tabac expose les footballeurs a une hyperlactatemie au cours de l'effort. Cette elevation est proportionnelle au degre de dependance nicotinique. Nos resultats renforcent l'interet des campagnes anti-tabac en milieu sportif dans le but d'ameliorer les performances des facteurs


Subject(s)
Lactase , Tobacco Smoking , Tobacco Use Disorder
11.
Med Trop (Mars) ; 68(3): 251-6, 2008 Jun.
Article in French | MEDLINE | ID: mdl-18689316

ABSTRACT

The purpose of this study was to evaluate the In vitro anti-sickling activity of two plants widely used for treatment of sickle cell disease in Togo, i.e., Morinda lucida et Newbouldia leavis. A concentration-dependent decrease in the rate of sickling was observed after incubation of red blood cells with plant extracts and 2% sodium metabisulfite as compared to incubation with 0.9% NaCl. On samples with a SS blood genotype the inhibition rate of Morinda lucida was 17.30% at a concentration of 1 mg/ml and 92.31% at a concentration of 30 mg/ml. On samples with an AS blood genotype, the inhibition rate of Morinda lucida 48.10% at a concentration of 1 mg/ml and 99.34% at a concentration of 30 mg/ml. Using Newbouldia leavis the inhibition rates at concentrations of 1 mg/ml and 30 mg/ml were 15.66% and 90.42% respectively on samples with a SS blood genotype and 64.03% and 99.02% respectively on samples with an AS blood genotype. The study protocol appeared to be adequate for both SS and AS blood genotypes since the Pearson correlation coefficient between rates measured on the two types of samples was 0.92 for Newuboulida and 0.89 for Morinda. These findings show that these two plants have clear-cut in vitro anti-sickling activity and support their use in traditional medicine.


Subject(s)
Anemia, Sickle Cell/blood , Bignoniaceae , Erythrocytes/drug effects , Morinda , Phytotherapy , Anemia, Sickle Cell/drug therapy , Animals , Antisickling Agents/pharmacology , Genotype , Humans , In Vitro Techniques , Rats , Rats, Wistar
12.
Trop. j. pharm. res. (Online) ; 7(1): 907-912, 2008.
Article in English | AIM (Africa) | ID: biblio-1273093

ABSTRACT

Purpose: Aloe buettneri A. Berger is commonly used in Togolese folk medicine to treat inflammation and gastric ulcer. In this study we investigated the anti-oedema; analgesic; antipyretic and ulcer healing properties of the hydro-alcohol extract of their leaves. Methods: Rat oedema paw were induced by the injection of 0.1 ml of formaldehyde 1; tail flick method is used to study analgesic property; hyperthermia was induced by subcutaneous injection of 15of a brewers' yeast suspension at dose of 10 ml/kg and ulcers were induced by ethanol or HCl/ethanol mixture. Results: The extract showed anti-inflammatory properties at doses between 250-500 mg/kg. It inhibited; in a dose- dependent manner; the oedema induced by 0.1 ml of formaldehyde 1. Scores of 73.70and 83.63were obtned when the doses of extract administered were 100 and 500 mg/kg; respectively. The tail flick analgesic index showed an increase of 36.56when the dose was 500 mg/kg. The extract decreased significantly the hyperthermia induced by the injection of yeast. 1000 mg/kg of the extract inhibited 63.77of the gastric lesion induced by acid-water-ethanol mixture while daily administration of the same dose accele- rated the cicatrisation of gastric ulcer induced by 95ethanol. Conclusion: The results obtained show that the hydro-alcohol extract of Aloe buettneri A. Berger (Lillia- ceae) has anti-inflammatory; anti-ulcer and wound healing properties


Subject(s)
Aloe , Anti-Inflammatory Agents , Anti-Ulcer Agents , Plant Extracts , Stomach Ulcer
13.
Médecine Tropicale ; 68(3): 251-256, 2008.
Article in French | AIM (Africa) | ID: biblio-1266825

ABSTRACT

Ce travail a ete realise dans le but d'evaluer l'activite inhibitrice de falciformation in vitro des extraits de deux plantes couramment utilisees dans le traitement de la drepano- cytose au Togo :Morinda lucida et Newbouldia leavis. Lorsque les hematies sont incubees en presence des extraits vegetaux et du metabisulfite de sodium a 2; on note une diminution concentration- dependante du taux de falciformation par rapport au sang temoin qui a ete incube en presence de NaCl a 0;9a la place des extraits. Morinda a montre un taux d'inhibition de 17;30a la concentration de 1 mg/ml et de 92;31a la concentration de 30 mg/ml sur le sang SS. Sur le sang AS; a la concentration de 1 mg/ml de cet extrait; l'inhibition est de 48;10et 99;34pour 30 mg/ml. Avec N. leavis on a obtenu une inhibition de 15;66a 1 mg/ml et 90;42a 30 mg/ml sur le sang SS. Sur le sangAS cette inhibition est de 64;03pour 1 mg/ml et 99;02pour 30 mg/ml. Ce protocole semble approprie pour travailler aussi bien avec le sang AS qu'avec le sang SS car les effets compares de chacun des extraits sur la falciformation du sang AS et SS ont donne un coefficient de correlation de Pearson qui est de 0;92 pour Newbouldia et de 0;89 pour Morinda. Nos resultats montrent que ces deux plantes ont un effet anti-falciformant evident in vitro et soutiennent l'interet de leur usage en medecine traditionnelle


Subject(s)
Anemia, Sickle Cell , Morinda , Rubiaceae
14.
J Steroid Biochem Mol Biol ; 100(4-5): 202-8, 2006 Aug.
Article in English | MEDLINE | ID: mdl-16820293

ABSTRACT

Previous studies conducted in guinea pig, rat and rabbit have revealed that crude extracts from Parkia biglobosa, Stereospermum kunthianum and Biophytum petersianum exert hypotensive and/or hypoglycemic activities. Since corticosteroids are involved in the control of arterial blood pressure and glycemia, we have investigated the possible effects of these plant extracts on rat adrenal tissue in vitro. Short-term administration of crude semi-ethanolic extracts of P. biglobosa and S. kunthianum to perifused rat adrenal tissue did not induce any significant changes in corticosteroid output. Conversely, the B. petersianum extract caused a dose-dependent increase in corticosterone and aldosterone secretion. Repeated infusions or prolonged administration of B. petersianum extract did not produce any apparent attenuation of the steroid response. Altogether, these data indicate that a semi-ethanolic extract of B. petersianum dose-dependently stimulates corticosterone and aldosterone secretion in rat without any desensitization phenomenon.


Subject(s)
Acacia/chemistry , Adrenal Cortex Hormones/metabolism , Adrenal Glands/drug effects , Bignoniaceae/chemistry , Magnoliopsida/chemistry , Plant Extracts/pharmacology , Animals , Dose-Response Relationship, Drug , Guinea Pigs , Plants, Medicinal/chemistry , Rabbits , Rats , Rats, Wistar
15.
Fitoterapia ; 76(2): 264-8, 2005 Mar.
Article in English | MEDLINE | ID: mdl-15752646

ABSTRACT

Five species of Combretaceae growing in Togo were investigated for their antifungal activity against 20 pathogenic fungi (10 yeast and 10 filamentous fungi). The five hydroethanolic extracts of Terminalia glaucescens and Anogeissus leiocarpus appeared to be the most active, their MICs ranging from 0.25 mg/ml to 4 mg/ml. The results confirm the traditional therapeutic properties of these plants.


Subject(s)
Antifungal Agents/pharmacology , Mitosporic Fungi/drug effects , Phytotherapy , Plant Extracts/pharmacology , Plants, Medicinal , Antifungal Agents/administration & dosage , Antifungal Agents/therapeutic use , Humans , Medicine, Traditional , Microbial Sensitivity Tests , Plant Extracts/administration & dosage , Plant Extracts/therapeutic use , Togo
16.
Ann Pharm Fr ; 62(5): 354-8, 2004 Sep.
Article in French | MEDLINE | ID: mdl-15314584

ABSTRACT

Ethanolic extract of Pluchea ovalis roots inhibit acetylcholine-induced bronchoconstriction observed in asthma. To understand the mechanism of P. ovalis root extract on airway smooth muscle contraction, we investigated the anti-cholinergic effect of the ethanolic extract on isolated isolated tracheae of the Wistar rat. For this purpose, three experimental conditions of incubation were used: idomethacin, indomethacin+propranolol or indomethacin+propranolo+ promethazine. The extract was applied in all three conditions at 0.25 mg/ml for 10 minutes prior to cumulative doses of acetylcholine (10(-8) to 5.10(-4) g/ml). The extract reduced acetylcholine-induced contraction and could have an antagonistic effect on muscarinic receptors of the rat trachea.


Subject(s)
Asteraceae/chemistry , Cholinergic Antagonists/pharmacology , Acetylcholine/pharmacology , Animals , Anti-Inflammatory Agents, Non-Steroidal/pharmacology , Bronchoconstriction/drug effects , In Vitro Techniques , Indomethacin/pharmacology , Muscle Contraction/drug effects , Plant Extracts/pharmacology , Plant Roots/chemistry , Rats , Rats, Wistar
17.
Phytother Res ; 17(8): 897-902, 2003 Sep.
Article in English | MEDLINE | ID: mdl-13680820

ABSTRACT

A bioassay-guided isolation of antifungal compounds from an African land race of ginger, Zingiber officinale Roscoe, led to the identification of [6], [8] and [10]-gingerols and [6]-gingerdiol as the main antifungal principles. The compounds were active against 13 human pathogens at concentrations of <1 mg/mL. The gingerol content of the African land race was at least 3 x higher than that of typical commercial cultivars of ginger. Therefore, ginger extracts standardized on the basis of the identified compounds, could be considered as antifungal agents for practical therapy.


Subject(s)
Antifungal Agents/pharmacology , Mitosporic Fungi/drug effects , Phytotherapy , Plant Oils/pharmacology , Zingiber officinale , Amphotericin B/pharmacology , Antifungal Agents/administration & dosage , Antifungal Agents/chemistry , Antifungal Agents/therapeutic use , Dose-Response Relationship, Drug , Humans , Microbial Sensitivity Tests , Plant Extracts/administration & dosage , Plant Extracts/chemistry , Plant Extracts/pharmacology , Plant Extracts/therapeutic use , Plant Oils/administration & dosage , Plant Oils/chemistry , Plant Oils/therapeutic use , Plant Roots
18.
Fitoterapia ; 74(3): 231-6, 2003 Apr.
Article in English | MEDLINE | ID: mdl-12727486

ABSTRACT

The essential oil of Lippia multiflora Moldenke (Verbenaceae) produced by conventional hydrodistillation was analyzed and studied for its analgesic, antipyretic and anti-inflammatory activities in rats and mice. At the doses used (2, 4 and 8 ml/kg o.s.) the essential oil of L. multiflora showed significant and dose-dependent analgesic effect on acetic acid-induced writhing in mice. Only the dose of 8 ml/kg of essential oil, antagonized hyperexia induced by brewer's yeast. No effect on granuloma formation was observed.


Subject(s)
Analgesics, Non-Narcotic/pharmacology , Analgesics/pharmacology , Fever/prevention & control , Lippia , Pain Measurement/drug effects , Pain/prevention & control , Phytotherapy , Plant Oils/pharmacology , Acetic Acid , Administration, Oral , Analgesics/administration & dosage , Analgesics/therapeutic use , Analgesics, Non-Narcotic/administration & dosage , Analgesics, Non-Narcotic/therapeutic use , Animals , Dose-Response Relationship, Drug , Granuloma, Foreign-Body/prevention & control , Male , Mice , Pain/chemically induced , Plant Leaves , Plant Oils/administration & dosage , Plant Oils/therapeutic use , Rats , Rats, Wistar , Saccharomyces cerevisiae
19.
Mycoses ; 46(1-2): 29-37, 2003 Feb.
Article in English | MEDLINE | ID: mdl-12588480

ABSTRACT

In this study, 36 extracts derived from 29 plant species selected using an ethnobotanical approach were tested for antifungal activity against a taxonomically diverse group of 13 human pathogenic fungi. We compared the inhibitory characteristics of these plant extracts with those of the commonly used antifungals, amphotericin B and ketoconazole, and the plant-derived antifungal, berberine. Several plant extracts, notably those from Zingiber officinale (ginger) and Juglans cinerea (butternut), had pronounced antifungal activity against a wide variety of fungi, including strains that were highly resistant to amphotericin B and ketoconazole. Further exploration of Z. officinale as an antifungal is warranted as this species is generally regarded as safe for human consumption.


Subject(s)
Antifungal Agents/pharmacology , Fungi/drug effects , Plants, Medicinal , Amphotericin B , Zingiber officinale/chemistry , Humans , Medicine, Traditional , Microbial Sensitivity Tests , Plant Extracts/pharmacology
20.
Cell Mol Biol (Noisy-le-grand) ; 49 Online Pub: OL419-23, 2003.
Article in English | MEDLINE | ID: mdl-14995071

ABSTRACT

Magnesium and zinc are both involved in a high number of enzymic activities vital for mammals. They are found in prostate in remarkably high concentrations and released into seminal fluid. Furthermore, drastic reduction of Zn and Mg concentrations in the semen fluid may lead to disorders in male fertility. We aimed to analyse the differences in Mg and Zn levels in the seminal plasma of 213 males including 48 normozoospermic, 30 azoospermic, 28 oligoasthenozoospermic, 22 asthenozoospermic and 85 chronic prostatitis. Mg and Zn concentrations were measured using an atomic absorption spectrophotometer. While zinc levels did not show correlation either with the volume of the sperm or the percentage of pathological forms, magnesium concentrations in seminal plasma were significantly decreased in chronic prostatitis patients as compared to other groups or normozoospermic patients (p<0.001). We propose therefore magnesium as a marker of prostatitis.


Subject(s)
Magnesium/analysis , Prostatitis/diagnosis , Prostatitis/metabolism , Semen/chemistry , Chronic Disease , Humans , Magnesium/metabolism , Male , Semen/metabolism , Zinc/analysis , Zinc/metabolism
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