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Relative importance of long-term changes in climate and land-use on the phenology and abundance of legume crop specialist and generalist aphids

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Insect Science 2019年第5期26卷 881-896页

作者： Martin Luquet Maurice Hulle Jean-Christophe Simon Nicolas Parisey christelle Buchard2 bruno Jaloux Agrocampus Ouest Centre of AngersInstitute of GeneticsEnvironment and Plant Protection (IGEPP-Joint Research Unit 1349) AngersFrance INRA Institute of GeneticsEnvironment and Plant Protection (IGEPP-Joint Research Unit 1349)Le Rheu France

Abstract Insect populations are prone to respond to global changes through shifts in phenology, distribution and abundance. However, global changes cover several factors such as climate and land-use, the relative importance of these being largely unknown. Here, we aim at disentangling the effects of climate, land-use, and geographical drivers on aphid abundance and phenology in France, at a regional scale and over the last 40 years. We used aerial data obtained from suction traps between 1978 and 2015 on five aphid species varying in their degree of specialization to legumes, along with climate, legume crop area and geographical data. Effects of environmental and geographical variables on aphid annual abundance and spring migration dates were analyzed using generalized linear mixed models. We found that within the last four decades, aphids have advanced their spring migration by a month, mostly due to the increase in temperature early in the year, and their abundance decreased by half on average, presumably in response to a combination of factors. The influence of legume crop area decreased with the degree of specialization of the aphid species to such crops. The effect of geographical variation was high even when controlling for environmental variables, suggesting that many other spatially structured processes act on aphid population characteristics. Multifactorial analyses helped to partition the effects of different global change drivers. Climate and land-use changes have strong effects on aphid populations, with important implications for future agriculture. Additionally, trait-based response variation could have major consequences at the community scale.

关键词： abundance climate warming degree of specialization land-use change legume aphids phenology

Preclinical and clinical evidence of the association of colibactinproducing Escherichia coli with anxiety and depression in colon cancer

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World Journal of Gastroenterology 2024年第21期30卷 2817-2826页

作者： Fabien Rondepierre Maëva Meynier Johan Gagniere Vincent Deneuvy Anissa Deneuvy Gwenaelle Roche Elodie Baudu bruno Pereira Richard bonnet Nicolas Barnich Frédéric Antonio Carvalho Denis Pezet Mathilde bonnet Isabelle Jalenques Service de Psychiatrie de l’Adulte A et Psychologie Médicale CHU Clermont-FerrandClermont-Ferrand 63000France M2iSH UMR 1071INSERMUniversity of Clermont AuvergneINRAE USC 1382Clermont-Ferrand 63001France NeuroDol UMR 1107INSERMUniversity of Clermont AuvergneClermont-Ferrand 63001France Department of Digestive Surgery CHU de Clermont-FerrandClermont-Ferrand 63001France Biostatistics Unit Department of Clinical Research and InnovationCHU Clermont-FerrandClermont-Ferrand 63000France Department of Bacteriology CHU de Clermont-FerrandClermont-Ferrand 63001France UniversitéClermont Auvergne INPCNRSClermont Auvergne Institut PascalClermont-Ferrand 63000France

BACKGROUND The association between the intestinal microbiota and psychiatric disorders is becoming increasingly *** gut microbiota contributes to colorectal carcinogenesis(CRC),as demonstrated with colibactin-producing Escherichia coli(CoPEC).AIM To evaluate the association between CoPEC prevalence and anxiety-and depressive-like behaviors with both preclinical and clinical *** Patients followed after a CRC surgery and for whom the prevalence of CoPEC has been investigated underwent a psychiatric *** were compared according to the CoPEC *** parallel C57BL6/J wild type mice and mice with a CRC susceptibility were chronically infected with a CoPEC *** behavior was assessed using the Elevated Plus Maze test,the Forced Swimming Test and the Behavior recognition system PhenoTyper®.RESULTS In a limited cohort,all patients with CoPEC colonization presented with psychiatric disorders several years before cancer diagnosis,whereas only one patient(17%)without CoPEC *** result was confirmed in C57BL6/J wildtype mice and in a CRC susceptibility mouse model(adenomatous polyposis colimultiple intestinal neoplasia/+).Mice exhibited a significant increase in anxiety-and depressive-like behaviors after chronic infection with a CoPEC *** This finding provides the first evidence that CoPEC infection can induce microbiota-gut-brain axis disturbances in addition to its procarcinogenic properties.

关键词： Colorectal cancer Colibactin Escherichia coli Colibactin-producing Escherichia coli Inflammation Anxiety Depression Behavior

生存在0℃到90℃之间--冰岛蓝色梦幻之旅感受极地风情

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摄影之友 2013年第6期 110-113页

作者： Daniel bonnet bruno Morandi-DragonImage(图) 李亦萌(译) 不详

大神奥丁在化作白隼的那一刻,眷恋地看了看身下那片寒冷而贫瘠的大地,他将远方带回醇厚的蜜酒,鼓励那些一头红发的维京海盗向南进发,去掠夺更多的财富。时光流转千年,冰岛依然位处极地,依然洁白无瑕,但却摆脱了贫瘠和寒冷……

关键词：冰岛风情感受梦幻蓝色寒冷眷恋

Hypotensive Effects of an Aqueous Extract of Bambusa vulgaris (Poaceae) Leaves in Rabbit Oryctolagus cuniculus

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Journal of Biosciences and Medicines 2023年第8期11卷 51-59页

作者： Appy Simone Abé Kouao Augustin Amonkan Kacou Jules Marius Djétouan Koffi Joseph N’guessan N’dah Etchien christelle Ekra Kesse Philippe N’da Koffi bruno Koko Akoua Jeanne Kanga UPR-Nutrition and Pharmacology Laboratory of Biology and Health UFR-Biosciences Félix Houphou&eumlt-Boigny University Abidjan C&otildete d’Ivoire UPR-Animal Physiology Phytotherapy and Pharmacology Laboratory of Biology and Health UFR-Biosciences Félix Houphou&eumlt-Boigny University Abidjan C&otildete d’Ivoire Laboratory of Industrial Processes Synthesis Environment and New Energy (LAPISEN) Institute National Polytechnique Félix Houphou&eumlt-Boigny Yamoussoukro C&otildete d’Ivoire

Plant of Bambusa vulgaris is used in traditional medicine practice for the management of many pathologies including hypertension. The effect of the aqueous extract of the leaves of Bambusa vulgaris on blood pressure was evaluated in normotensive male rabbits. Blood pressure was measured by the invasive method. Thus, aqueous extract of Bambusa vulgaris leaves had been injected intravenously at doses ranging from 1 mg/kg to 30 mg/kg in rabbits anesthetized with thiopental. The effects of this extract on blood pressure were also evaluated in rabbits having previously received different doses of atropine. The aqueous extract of Bambusa vulgaris leaves induced a dose-dependent hypotension which is not canceled in the presence of atropine. The results obtained show that the extract has blood pressure lowering effect which may be mediated by muscarinic-type cholinergic receptors.

关键词： Bambusa vulgaris Aqueous Extract Hypotensive Effects Oryctolagus cuniculus Rabbits Atropine

Lower Extremity Arterial Disease in Patients with Type 2 Diabetes: Prevalence and Associated Factors at the Libreville University Hospital Center

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World Journal of Cardiovascular Diseases 2024年第5期14卷 295-308页

作者： Allognon Mahutondji Christian Ayo Bivigou Elsa Ntoutoume Mvé Dylan Anthony N’nang Jean-Fidel Kinga Armel Mpori Jamila Myrtille Akagah Kondé christelle Ndoume Obiang Francis Yékini Carole Fadylath Ndjibah Alakoua Cajole Ludvine Babongui Boussougou Latifah Mipinda Jean-bruno Moubamba Franck Ecke Nzengue Jean-Emmanuel Houenassi Dèdonougbo Martin Boguikouma Jean-bruno Department of Medicine and Medical Specialties Health Sciences University (USS) Libreville Gabon Cardiology Service Libreville University Hospital Center (CHUL) Libreville Gabon Department of Physiology Health Sciences University Libreville Gabon Amissa Bongo Regional Hospital Franceville Gabon Mother-Child Hospital Center Jeanne Ebori Foundation Libreville Gabon Medicine Service Owendo University Hospital Center Owendo Gabon

Introduction: Lower extremity arterial disease in diabetic patients has distinct characteristics. Objectives: To study the hospital frequency of lower extremity arterial disease and identify associated factors in diabetic patients at the Libreville University Hospital Center (CHUL). Materials and Methods: This was a cross-sectional study conducted from July 1, 2023, to January 31, 2024, in the endocrinology department of the CHUL. All patients with type 2 diabetes over the age of 18 admitted to this department, regardless of the reason for hospitalization, who provided informed consent, were included. Socio-demographic data and cardiovascular risk factors were recorded. Personal and family cardiovascular history and functional symptoms were investigated. The physical examination included measuring blood pressure, heart rate, and the ankle-brachial index in all patients. Results: A total of 219 patients were included, of whom 75 had lower extremity arterial disease, representing a prevalence of 34.24%. It was compensated in 28 cases (37.33%) and decompensated in 39 patients (52%). In eight cases (10.67%), there was critical chronic ischemia. Cardiovascular risk factors associated with diabetes were physical inactivity (89.5%), hypertension (55.25%), overweight (49.77%), obesity (22.84%), and smoking (10.04%). In multivariate analysis, only hypertension (OR = 2.09;95% CI: 1.05 - 4.17;p = 0.035) and LDL cholesterol (OR = 2.75;95% CI: 1.10 - 6.85;p = 0.03) were significantly associated with lower extremity arterial disease in diabetics at the University Hospital of Libreville. Conclusion: Lower extremity arterial disease is common in diabetic patients at the University Hospital of Libreville. It is often asymptomatic, thus requiring systematic screening.[-rId11-]

关键词： Lower Extremity Arterial Disease Diabetes Hypertension Ankle-Brachial Index Gabon