检索结果-南通市图书馆

Genetic variation in the reduction of attractive floral traits of an annual tarweed in response to drought and apical damage

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Plant Ecology 2016年第5期9卷 629-635页

作者： Wilfredo l.Gonzáles lorena H.Suárez Ernesto Gianoli laboratorio de Ecología Evolutiva LIDFacultad de Ciencias y FilosofíaUniversidad Peruana Cayetano HerediaLimaPerú Departamento de Ecología P.Universidad Católica de ChileSantiagoChile Departamento de Biología Universidad de La SerenaLa SerenaChile Departamento de Botánica Universidad de ConcepciónConcepciónChile

Aims Foliar herbivory and water stress may affect floral traits attractive to *** genotypes may differ in their responses to the interplay between these factors,and evolution of phenotypic plasticity could be expected,particularly in heterogeneous *** aimed at evaluating the effects of simulated herbivory and experimental drought on floral traits attractive to pollinators in genetic families of the annual tarweed Madia sativa,which inhabits heterogeneous environments in terms of water availability,herbivore abundance and pollinator *** In a greenhouse experiment with 15 inbred lines from a *** population located in central Chile(Mediterranean-type climate),we measured the effects of apical bud damage and reduced water availability on:number of ray florets per flower head,length of ray florets,flower head diameter,number of open flower heads per plant,flowering plant height and flowering *** Findings Apical damage and water shortage reduced phenotypic expression of floral traits attractive to pollinators via additive and non-additive *** in low water showed decreased height and had fewer and shorter ray florets,and fewer and smaller flower *** plants showed delayed flowering,were less tall,and showed shorter ray florets and smaller flower *** number of ray florets was reduced by damage only in the low water *** height,flowering time and number of flower heads showed among-family *** traits also showed genetic variation for plasticity to water *** floret length,flower head size and time to flowering showed genetic variation for plastic responses to apical *** in flowering time may allow *** to adjust to the increased aridity foreseen for its *** genetic variation for plastic responses was detected,conditions are given for evolutionary responses to selective forces acting on plastic *** suggest that the evolution o

关键词： flower genetic variation herbivory phenotypic plasticity water availability

Short-term effects of obestatin on hexose uptake and triacylglycerol breakdown in human subcutaneous adipocytes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Diabetes 2018年第1期9卷 25-32页

作者： Christian Carpéné Francisco les David Estève Jean Galitzky Institut des Maladies Métaboliques et Cardiovasculaires Institut National de la Santé et de la Recherche Médicale Université Paul Sabatier Department of Pharmacy Faculty of Health Sciences Universidad San Jorge

AIM To study complete dose-dependent effects of obestatin on lipolytic and glucose transport activities in human adipocyte preparations highly responsive to *** Adipocytes were prepared by liberase digestion from subcutaneous abdominal adipose tissue obtained from overweight subjects undergoing plastic surgery. The index of lipolytic activity was the glycerol released in the incubation medium, while glucose transport was assessed by [~3H]-2-deoxyglucose uptake *** When tested from 0.1 nmol/l to 1 μmol/l, obestatin did not stimulate glycerol release; it did not inhibit the lipolytic effect of isoprenaline and did not alter the insulin antilipolytic effect. Obestatin hardly activated glucose transport at 1 μmol/l only. Moreover, the obestatin stimulation effect was clearly lower than the threefold increase induced by insulin 100 nmol/*** low doses of obestatin cannot directly influence lipolysis and glucose uptake in human fat cells.

关键词： Insulin lipolysis Adipokines Glucose uptake Obestatin Human adipocytes

Hyperglycemia and reduced adiposity of streptozotocin-induced diabetic mice are not alleviated by oral benzylamine supplementation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Diabetes 2022年第9期13卷 752-764页

作者： Christian Carpéné Kristiyan Stiliyanov Atanasov Francisco les Josep Mercader Barcelo Institut des Maladies Métaboliques et Cardiovasculaires INSERM UMR 1297Toulouse 31432France Molecular Biology and One Health research group Department of Fundamental Biology and Health SciencesUniversity of the Balearic IslandsPalma 07122Spain Department of Pharmacy Faculty of Health SciencesUniversidad San JorgeVillanueva de GállegoZaragoza 50830Spain

BACKGROUND Benzylamine(Bza)oral administration delays the onset of hyperglycemia in insulin-resistant db-/-mice;a genetic model of obesity and type 2 *** To extend the antihyperglycemic properties of oral benzylamine to a model of insulin-deficient type 1 *** Male Swiss mice were rendered diabetic by streptozotocin treatment(STZ)and divided in two groups:one received 0.5%Bza as drinking solution for 24 d(STZ Bza-drinking)while the other was drinking water ad *** groups were constituted in age-matched,nondiabetic *** intake,liquid intake,body weight gain and nonfasting blood glucose levels were followed during *** the end of treatment,fasted glycemia,liver and white adipose tissue(WAT)mass were measured,while glucose uptake assays were performed in *** STZ diabetic mice presented typical features of insulin-deficient diabetes:reduced body mass and increased blood glucose *** altered parameters were not normalized in the Bza-drinking group in spite of restored food and water *** consumption could not reverse the severe fat depot atrophy of STZ diabetic *** the nondiabetic mice,no difference was found between control and Bza-drinking mice for any *** isolated adipocytes,hexose uptake was partially activated by 0.1 mmol/l Bza in a manner that was obliterated in vitro by the amine oxidase inhibitor phenelzine and that remained unchanged after Bza *** of 0.1 mmol/l Bza in WAT was lower in STZ diabetic than in normoglycemic *** Bza supplementation could not normalize the altered glucose handling of STZ diabetic mice with severe WAT ***,its antidiabetic potential in obese and diabetic rodents does not apply to lipoatrophic type 1 diabetic mice.

关键词： Diabetes Adipocytes Amine oxidases Insulin-like agents Glucose transport Polydipsia

Nutritional and Sanitary Quality of Infant Flours Produced in Ouagadougou, Burkina Faso

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food and Nutrition Sciences 2024年第8期15卷 727-743页

作者： léa Kilô Adam Bayala-Yaï Philippe Augustin Nikièma Hassane Sangaré Fabrice Bationo Imael Henri Nestor Bassolé Jacques Simpore laboratoire de Biologie Molculaire et de Gntique (lABIOGENE) Universit Joseph KI-ZERBO Ouagadougou Burkina Faso laboratoire de Biologie Molculaire dEpidmiologie et Surveillance des Agents Transmissibles par les Aliments (LaBESTA) Universit Joseph KI-ZERBO Ouagadougou Burkina Faso laboratoire de Microbiologie et de Physicochimie du Dpartement de Technologie Alimentaire (DTA) Institut de Recherche en Sciences Appliques et Technologies (IRSAT) Ouagadougou Burkina Faso

The quality of infant flours used during the weaning age is of great importance in that it conditions the nutritional health of infants and young children. This study aimed to assess the nutritional and sanitary quality of infant flours produced in the city of Ouagadougou. This was a cross-sectional study including 11 out of 25 infant flour production units that gave their consent to partake in the study. In total, 25 infant flour samples have been collected from July to September 2021. The physicochemical and microbiological parameters were determined according to standard methods. The ANOVA analysis of variance showed significant differences between the means of the physico-chemical and the means of the microbiological parameters respectively. The results showed that 60% of proteins and 80% of lipid and total carbohydrate contents were below the authorised limits. The energy values were below the authorised limit in 88% of the cases. All instant infant flours had microbiological loads compliant with Burkinabè standards. As for infant flour to be cooked, 63.64% and 81.82% had satisfactory numbers of total coliforms and faecal coliforms respectively. Staphylococcus aureus and Escherichia coli were detected in these samples with 86.36% of infant formulae having results below the recommended limit. These results show that the infant flours produced in Ouagadougou were somehow of acceptable quality. However, there is a need to improve the formulae for macronutrient contents, energy values and sanitary quality to comply with the recommendations.

关键词： Nutritional and Sanitary Quality Infant Flours Ouagadougou Burkina Faso

Sexual health in Polish elderly men with coronary artery disease:importance, expectations,and reality

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Journal of Andrology 2020年第5期22卷 526-531页

作者： lestaw Rusiecki Romuald Zdrojowy Jana Gebala Michal Rabijewski Matgorzata Sobieszczariska Ryszard Smolinski Witold Pilecki Wioletta Dziubek Anna Janocha Maciej Womperski Dariusz Kalka Cardiosexology Unit Department of PathophysiologyWroclaw Medical UniversityWroclaw 50-368Poland Department and Clinic of Urology Wroclaw Medical UniversityWroclaw 50-556Poland Cardiosexology Students'Scientific Club Wroclaw Medical UniversityWroclaw 50-368Poland Department of Reproductive Health Centre of Postgraduate Medical EducationWarsaw 01-004Poland Department of Geriatrics Wroclaw Medical UniversityWroclaw 50-369Poland Consultant Sexologist Clinical Hospital Wroclaw Medical UniversityWroclaw 50-556Poland Departm ent of Physiotherapy University School of Physical EducationWroclaw 51-612Poland Department of Physiology Wroclaw Medical UniversityWroclaw 50-368Poland lower Silesian Center for Mental Health Wroclaw 50-226Poland Centre for Men's Health Wroclaw 53-151Poland.

Deterioration in overall health,hormonal disturbances,and erectile dysfunction(ED)contributes to limitations in sexual activity in the elderly,which is further limited by incorrect beliefs about the hazards of sexual activity in cardiac *** aimed to analyze the occurrence of ED in elderly men,their perception of the relevance of good sexual function,and their expectations of physicians.A cross-sectional study encompassed 731 patients with coronary artery disease(CAD)subjected to cardiac *** data and data on modifiable risk factors and patient expectations were *** was assessed using the IIEF-5 *** among the risk factors for ED,occurrence of ED,and patient expectations,as well as the changes in the indicators between 2012 and 2016,were *** mean age of men was 70.7±5.1 *** prevalence of ED was 93.0%.The IIEF-5 score was significantly associated with age,tobacco smoking,exercise tolerance,time to diagnosis of CAD,and treatment with calcium channel blockers and *** declared that sexual activity was overall important(47.9%)or very important(25.6%).Three hundred and sixty(49.3%)patients expected their physician to show interest in their sexual health,but the topic was addressed in only 12.5%.Over the past few years,we have observed an increase in the awareness and importance of sexual health as well as a significant increase in patients’expectations of physicians to show interest in their sexual ***’expectations of discussing and receiving treatment for ED remain an unmet medical need.

关键词： advanced age cardiac rehabilitation erectile dysfunction ischemic heart disease sexual disorders

Engineering your future an introduction to engineering

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Case Study for Undetermined Mosquito Species by Polymerase Chain Reaction in Western Burkina Faso

2002年

作者： authors William C. Oakes les l. leone Craig J. Gunn.

来源：畅想之星图书光盘版（南... 评论

在线全文

畅想之星图书光盘版（南通市图书馆镜像）

学校读者我要写书评

暂无评论

American Journal of Molecular Biology 2024年第2期14卷 43-53页

作者： Koudraogo Bienvenue Yaméogo Sassan Simplice Kambou Domonbabélé François de Sales Hien logotio Rachel Angela Traore Franck Adama Yao Rakiswendé Serge Yerbanga Centre National de la Recherche Scientifique et Technologique CNRST Institut de Recherche en Sciences de la Sante (IRSS) Laboratoire de recherche sur les maladies infectieuses et parasitaires Bobo-Dioulasso Burkina Faso Institut des Sciences et Techniques (INSTech Bobo) Avenue de Sya Bobo-Dioulasso Burkina Faso

Introduction: Malaria eradication campaigns all over the world are largely based on parasite and vector control. Vector identification, whether morphological or molecular, is an essential component of vector control. This study analyzed the possible causes of indeterminate polymerase chain reaction (PCR) results for mosquito species in Western part of Burkina Faso. Methodology: From July 2021 to November 2021, mosquitoes were collected during the period of high malaria transmission in the village of Séguéré, Houet province, Burkina Faso, and morphologically identified. After DNA extraction, samples were amplified by sine 200× PCR to identify species of the Anopheles gambiae complex. Indeterminate samples were then selected for further analysis. The parameters studied were: DNA dilution, the effect of protocol adjusting, and the type of protocol used. Results: A total of 130 “indeterminate” DNAs diluted 1:10 were analyzed. After dilution, the mean amount was 14.73 ± 3.59 ng/μl and absorbance 1.71 ± 0.1. PCR chain reaction yielded 94.62% (123/130) anopheline species in SINE PCR, 5.38% (7/130) “negative”. A significant difference between SINE PCR before dilution and after dilution was observed (P ls gave no positive results. From these results, we note that the adaptation of the protocol significantly reduced the polymerase amplification results of the species. Conclusion: It is therefore necessary to respect the amplification protocols. However, the persistence of “indeterminate” results suggests that further studies should be carried out to shed more light on the subject.

关键词： Malaria Vector DNA PCR

Management of the Prosthetic Valve Thrombosis: This Time Is Different

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Case Reports in Clinical Medicine 2021年第7期10卷 185-190页

作者： Zineb Kounka Benjamín Roque-Rodríguez luis Enrique lezcano-Gort David Antonio Chipayo-Gonzáles Elena Gallego-Curto Cecilio Raúl Rodríguez-Carreras Department of Cardiology Complejo Hospitalario Universitario de C&aacute ceres C&aacute ceres Spain Intensive Care Unit Complejo Hospitalario Universitario de C&aacute ceres C&aacute ceres Spain

Prosthetic valve thrombosis (PVT) is a rare but serious entity. Its diagnosis and treatment can be challenging and mortality remains high regardless of its management. A 50-year-old man admitted with cardiac arrest, whose physical examination and echocardioscopy suggested PVT confirmed with fluoroscopy. Intra-aortic fibrinolysis was the treatment chosen with successful results.

关键词： Prosthetic Valve Thrombosis Intra-Aortic Fibrinolysis low-Dose Slow Infusion

National Soil Organic Carbon Stocks Inventories under Different Mangrove Forest Types in Gabon

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Forestry 2024年第2期14卷 127-140页

作者： Rolf Gaël Mabicka Obame Neil-Yohan Musadji Jean Hervé Mve Beh lydie-Stella Koutika Jean Aubin Ondo Farrel Nzigou Boucka Michel Mbina Mounguengui Claude Geffroy Dé partement de Phytotechnologie Institut National d&#8217Agronomie et de Biotechnologies Universit&#233 des Sciences et Techniques de Masuku Franceville Gabon Dé partement des Sciences Fondamentales de l&#8217Ing&#233nieur Institut National d&#8217Agronomie et de Biotechnologies Universit&#233 des Sciences et Techniques de Masuku Franceville Gabon Institut Agronomiques et Forestiè res Centre National des Recherches Scientifiques et Technologiques Libreville Gabon Research Centre on the Durability and the Productivity of Industrial Plantations (CRDPI) Pointe Noire Republic of Congo laboratoire Pluridisciplinaire des Sciences &#201cole Normale Sup&#233rieure Libreville Gabon Agence Gabonaise d’ &#201tude et d&#8217Observation Spatiale Immeuble les Arcades Libreville Gabon Dé partement de G&#233ologie Faculte des Sciences Universit&#233 des Sciences et Techniques de Masuku Franceville Gabon Institut de Chimie des Milieux et Maté riaux de Poitiers (IC2MP) Universit&#233 de Poitiers Poitiers France

Gabonese’s estuary is an important coastal mangrove setting and soil plays a key role in mangrove carbon storage in mangrove forests. However, the spatial variation in soil organic carbon (SOC) storage remain unclear. To address this gap, determining the SOC spatial variation in Gabonese’s estuarine is essential for better understanding the global carbon cycle. The present study compared soil organic carbon between northern and southern sites in different mangrove forest, Rhizophora racemosa and Avicennia germinans. The results showed that the mean SOC stocks at 1 m depth were 256.28 ± 127.29 MgC ha−1. Among the different regions, SOC in northern zone was significantly (p p layers contained higher SOC stocks (254.62 ± 128.09 MgC ha−1) than upper layers (55.42 ± 25.37 MgC ha−1). The study highlights that low deforestation rate have led to less CO2 (705.3 Mg CO2e ha−1 - 922.62 Mg CO2e ha−1) emissions than most sediment carbon-rich mangroves in the world. These results highlight the influence of soil texture and mangrove forest types on the mangrove SOC stocks. The first national comparison of soil organic carbon stocks between mangroves and upland tropical forests indicated SOC stocks were two times more in mangroves soils (51.21 ± 45.00 MgC ha−1) than primary (20.33 ± 12.7 MgC ha−1), savanna and cropland (21.71 ± 15.10 MgC ha−1). We find that mangroves in this study emit lower dioxide-carbon equivalent emissions. This study highlights the importance of national inventories of soil organic carbon and can be used as a baseline on the role of mangroves in carbon sequestration and climate change mitigation but the variation in SOC stocks indicates the need for further national data.

关键词： Mangroves Forest Soil Organic Carbon Stocks Rizophora Racemose Avicenia germinans Gabon