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The phytoconstituents and the comparative effects of aqueous extract of Irvingia gabonensis seeds and proviron on the biochemical parameters of male guinea pigs

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Asian Pacific Journal of Tropical Medicine 2010年第2期3卷 101-104页

作者： Obianime AW Uche fi Department of Pharmacology University of Port Harcourt Department of Pharmacognosy and Phytotherapy University of Port Harcourt

Objective:To investigate the phytochemical screening and the effects of the aqueous extracts of the seeds of Irvingia gabonensis on the biochemical parameters of male guinea ***: The biochemical parameters were assayed using Randox Diagnostic kits,Phenolphthalein method and colorimetric *** phytochemical screening was carried out using standard ***:Phytochemical investigations revealed the presence of flavonoids,tannins, carbohydrate,alkaloids,terpenoids,steroids,volatile oils,saponins and cardiac *** aqueous extract of Irvingia gabonensis seeds(SO - 400 mg/kg) caused a statistically significant(Pies need to be done to isolate,identify and characterize the active principles in the seeds of this plant.

关键词： Irvingia gabonensis Phytoconstituents Biochemical parameters Proviron Male guinea pigs

POSITIVE SOLUTIONS FOR SINGULAR BVPs ON THE POSITIVE HALF-LINE ARISING FROM EPIDEMIOLOGY AND COMBUSTION THEORY

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Acta Mathematica Scientia 2012年第2期32卷 672-694页

作者： Smaïl Djebali Ouiza Saïfi 闫宝强 Department of Mathematics E.N.S.P.O.Box 9216050 Kouba.AlgiersAlgeria Department of Economics Faculty of Economic and Management SciencesAlgiers UniversityAlgeria Department of Mathematics Shandong Normal University

In this work, we are concerned with the existence and multiplicity of positive solutions for singular boundary value problems on the half-line. Two problems from epi- demiology and combustion theory set on the positive half-line are investigated upper and lower solution techniques combined with fixed point index on cones in priate Banach spaces. The results complement recent ones in the literature. We use appropriate Banach spaces. The results complement recent ones in the literature.

关键词： fixed points index positive solution singular problem cone lower andupper solution half-line

The effects of aqueous extracts of Tetracarpidium conophorum seeds on the hormonal parameters of male guinea pigs

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Asian Pacific Journal of Tropical Medicine 2010年第1期3卷 21-24页

作者： Obianime AW Uche fi Department of Pharmacology University of Port Harcourt Department of Pharmacognosy and Ethno Therapy University of Port Harcourt

Objective:To investigate the effects of the aqueous extracts of the seeds of Tetracarpidium conophorum and the effect of Proviron(12.5 mg/kg)(as standard) on the hormonal parameters of male guinea pigs,compare the effects of the seeds of Tetracarpidium conophorum and Proviron,and screen the phytochemical constituents of the seeds of Tetracarpidium ***:The hormonal effects of the Tetracarpidium conophorum and Proviron were tested by hormonal assay,using enzyme immuno assay *** was done by reaction of antibody with serum testosterone and testosterone label,magnetic solid phase separation and colour development *** screening was done using standard procedures. Results:The aqueous extract of the Tetracarpidium conophorum seeds(100-400 mg/kg) caused a statistically significant increase(Pies need to be done to isolate and characterize the active pri

关键词： Tetracarpidium conophorum Hormonal parameters Male guinea pigs

Evaluation of antioxidant activities of some Nigerian medicinal plants

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Asian Pacific Journal of Tropical Medicine 2009年第4期2卷 27-32页

作者： Uche fi Ezugwu CO Department of Pharmacognosy and Ethnotherapy University of Port Harcourt Nigeria Department of Pharmacognosy University of Nigeria Nsukka Nigeria

Objective:The methanol extracts of the leaves of Kolancheo(K.) pinnata,Aspilia(A.) africana,Mucuna (M.) pruriens,Emilia(E.) coccinea,Triumfetta(T.) rhomboidea,Laportea(L.) ovalifolis,Celosia(C.) trigynea,Cucurbita(C.)moschata and Asystesia(A.)gangestica were evaluated for antioxidant activities,the reducing potentials of these plants were also determined and phytochemical screening of some of these plants were carried ***:The antioxidant activities of these plants were evaluated by the use of 2,2-diphenyl -1 -picrylhydrazyl(DPPH) free radical assay and *** reducing potentials of these plants were determined using Ferric chloride,Potassium Ferricyanide and Trichloroacetic acid proceedures. The phytochemical screenings of the medicinal plants were equally done using standard ***: The percentage of antioxidant activities values for the plants were:(31.00±1.80)%,(58.40±1.26) %,(59.10±1.60)%,(60.00±1.05)%,(60.80±1.28)%,(62.40±1.26)%,(64.80±2. 10)%,(75.70±2.60)%and(82.70±2.80)%for ***,***,***,L. ovalifolia,***,***,***,*** and *** values were dose-dependent and statistically significant at P ies of these plants were comparable to the standard used,Tocopherol which was found to be(97.20±1.06)%.The reducing potentials of the plants were found to be positively correlated to the antioxidant activities of the *** screenings revealed the presence of alkaloids,flavonoids,terpenoids,saponins and tannins in the medicinal ***:The findings from this study have revealed the potentials of these plants as *** could be exploited in drug development in search of powerful antioxidants which are urgently needed to challenge free radicals

关键词： Phytochemical screening Antioxidant activity Reducing potentials Nigerian medicinal plants

The comparative effects of aqueous extract of Tetracarpidium conophorum seeds and Proviron on the sperm parameters of male guinea pigs

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Asian Pacific Journal of Tropical Medicine 2009年第6期2卷 11-15页

作者： Obianime AW Uche fi Department of Pharmacology University of Port HarcourtNigeria Department of Pharmacognosy and Ethno Therapy University of Port Harcourt Nigeria

Objective:To investigation the comparative effects of the aqueous extracts of the seeds of Tetracarpidium conophorum (***) and Proviron on the sperm parameters of male guinea pigs,and screen phytochemical constituents of the seeds of ***:The sperm count,motility and morphology of the male guinea pigs were done using Neubauer chamber(Haemocytometer),light microscope and dilute carbol Fuchsin(1:20) method,*** screening was done by standard ***: The aqueous extract of the *** seeds(100 -400 mg/kg) caused statistically significant increase (P ficant at P finally, the phytochemical screening of the seeds of *** revealed the presence of flavonoids,tannins, alkaloids,terpenoids,carbohydrates,volatile oil

关键词： Tetracarpidium conophorum Sperm parameters Proviron Male guinea pigs Phytochemical screening

Phytochemical constituents,analgesic and anti-inflammatory effects of methanol extract of Triumfetta rhomboidea leaves in animal models

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Asian Pacific Journal of Tropical Medicine 2009年第5期2卷 26-29页

作者： Uche fi Okunna BU Department of Pharmacognosy and Ethnotherapy University of Port Harcourt Rivers State Nigeria

Objective:To investigate the analgesic and anti-inflammatory effects of the methanolic extract of the leaves of Triumfetta rhomboidea on mice and rats *** to screen the phytochemical constituent of the extract. Methods:The analgesic effect was determined by acetic acid-induced writhing test in *** the anti-inflammatory activity was determined by egg albumin-induced oedema of the rat *** screening was done by standard ***:Triumfetta rhomboidea leaf extract(50 -400 mg/kg) caused a statistically significant inhibition on the egg albumin-induced eodema or inflammation in Wister albino rats with Pficant reduction in the number of acetic acid-induced writhing in mice,with Pfind out the mechanism of its action and also to isolate,identify and characterize the active principle responsible for these effects in this plant.

关键词： Triumfetta rhomboidea Phytochemical constituents Anti-inflammatory Analgesic effect Animal models

Seroepidemiological survey of Chlamydia in North West zone of Nigeria

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Asian Pacific Journal of Tropical Medicine 2009年第4期2卷 58-63页

作者： Agbonlahor DE Okoror LE Esumeh fi Department of Microbiology Faculty of Natural SciencesAmbrose Alli UniversityPMB 14EkpomaNigeria Department of Microbiology and Biotechnology College of Natural and Applied SciencesWestern Delta UniversityPMB 10OgharaDelta StateNigeria

Objective:Chlamydia is made of organism responsible for respiratory as well as genital infections with very serious *** Nigeria there is paucity of information regards relative frequencies of Chlamydia infection of which this study reports in North West zone of ***:Three hundred and thirty three(333) blood samples were collected from individuals attending various clinics in North West zone of Nigeria and tested for Chlamydia complement fixing *** collected from positive patients were re-tested using the Romanowsky -Giemsa staining *** analysis were carried out in epi-info epidemiological software ***:From the total of 333 samples collected and tested for Chlamydia complement fixing antibody (CCFA) only 287(86%) were *** culture showed that 215(75%) were positive for Chlamydia trachomatis while only 135(47%) were positive for Chlamydia *** one(71) females had symptomatic infection while 31 males were *** the 104 individuals who were asymptomatic 67 were females while 92 were *** the 31 symptomatic males were 22 positive to Chlamydia pneumoniae and the symptoms being that of respiratory syndrome while 9 had difficulty *** the symptomatic women had symptoms resembling that of the pelvic inflammatory disease(PID) and vaginal discharge. Age groups 31-35 had the highest positive samples while the extreme ages had the lowest number of positive individuals and also the lowest number of *** number of samples as well as the positive results were validated using the epi-info statistical package version *** was no significant difference in the number of samples from both males and females(χ~2=1.360,CI = 99%).Conclusion:A high percentage of positive result as validated by statistical analysis shows that Chlamydia infections are endemic in the population and efforts should be made to screen for the organism to avoid the " silent epidemics".

关键词： Chlamydia Serological survey Infections

Sex-dependent increase of movement activity in the freshwater isopod Asellus aquaticus following adaptation to a predator-free cave habitat

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Current Zoology 2023年第4期69卷 418-425页

作者： ELTE Eötvös Loránd University Hajriz Berisha Gergely Horváth Žiga fišer Gergely Balázs Cene fišer Gábor Herczeg Author Notes Behavioural Ecology Group Department of Systematic Zoology and EcologyBiological InstituteELTE Eötvös Loránd UniversityPázmány Péter sétány 1/CBudapestHungary H-1117 ELKH-ELTE-MTM Integrative Ecology Research Group Pázmány Péter sétány 1/CBudapestHungary H-1117 Department of Biology Biotechnical FacultyUniversity of LjubljanaJamnikarjeva 1011000 LjubljanaSlovenia

Populations experiencing negligible predation pressure are expected to evolve higher behavioral ***,when sexes have different expected benefits from high activity,the adaptive shift is expected to be ***,we compared movement activity of one cave(lack of predation)and three adjacent surface(high and diverse predation)populations of Asellus aquaticus,a freshwater isopod known for its independent colonization of several caves across *** predicted 1)higher activity in cave than in surface populations,with 2)the difference being more pronounced in males as they are known for active mate searching behavior,while females are *** was assessed both in the presence and absence of *** results supported both predictions:movement activity was higher in the cave than in the surface populations,particularly in *** predation pressure in the cave-adapted population is most likely the main selective factor behind increased behavioral activity,but we also showed that the extent of increase is sex-specific.

关键词： adaptation cave colonization movement activity predator-free environment

Sex-specific life-history strategies among immature jumping spiders:Differences in body parameters and behavior

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Current Zoology 2023年第5期69卷 535-551页

作者： LászlóMezőfi Viktor Markó DóraÁgnes Taranyi Gábor Markó Institute of Plant Protection Hungarian University of Agriculture and Life SciencesBudapest 1118Hungary Institute of Viticulture and Enology Hungarian University of Agriculture and Life SciencesBudapest 1118Hungary

Selection forces often generate sex-specific differences in various traits closely related to *** in adult spiders(Araneae),sexes often differ in coloration,body size,antipredator,or foraging behavior,such sex-related differences are less pronounced among ***,sex-specific life-history strategies may also be adaptive for ***,we hypothesized that among spiders,immature individuals show different life-history strategies that are expressed as sex-specific differences in body parameters and behavioral features,and also in their *** used immature individuals of a protandrous jumping spider,Carrhotus xanthogramma,and examined sex-related *** results showed that males have higher mass and larger prosoma than *** were more active and more risk tolerant than *** activity increased with time,and larger males tended to capture the prey faster than small ones,while females showed no such ***,females reacted to the threatening abiotic stimuli more with the increasing number of test *** both males and females,individuals with better body conditions tended to be more risk *** showed no sex-specific differences in interindividual behavioral consistency and in intraindividual behavioral variation in the measured behavioral ***,we also found evidence for behavioral syndromes(i.e.,correlation between different behaviors),where in males,only the activity correlated with the risk-taking behavior,but in females,all the measured behavioral traits were *** present study demonstrates that *** sexes follow different life-history strategies even before attaining maturity.

关键词： activity behavioral syndrome boldness intraindividual variability repeatability sexual dimorphism