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Unraveling the gut-brain axis:the impact of steroid hormones and nutrition on Parkinson's disease

Neural Regeneration Research 2024年第10期19卷 2219-2228页

作者： paula Maria Neufeld Ralf A.Nettersheim Veronika Matschke Matthias Vorgerd Sarah Stahlke Carsten Theiss Department of Cytology Institute of AnatomyMedical FacultyRuhr-University BochumBochumGermany Department of Visceral Surgery University Hospital BergmannsheilRuhr-University BochumBochumGermany Department of Neurology Heimer Institute for Muscle ResearchUniversity Hospital BergmannsheilRuhr-University BochumBochumGermany

This comprehensive review explores the intricate relationship between nutrition,the gut microbiome,steroid hormones,and Parkinson's disease within the context of the gut-brain *** gut-brain axis plays a pivotal role in neurodegenerative diseases like Parkinson's disease,encompassing diverse components such as the gut microbiota,immune system,metabolism,and neural *** gut microbiome,profoundly influenced by dietary factors,emerges as a key *** during the first 1000 days of life shapes the gut microbiota composition,influencing immune responses and impacting both child development and adult ***-fat,high-sugar diets can disrupt this delicate balance,contributing to inflammation and immune *** nutritional strategies,the Mediterranean diet's anti-inflammatory and antioxidant properties show promise in reducing Parkinson's disease ***-targeted dietary approaches and the ketogenic diet hold the potential in improving brain *** nutrition,emerging research uncovers potential interactions between steroid hormones,nutrition,and Parkinson's ***,with its anti-inflammatory properties and presence in the nervous system,offers a novel option for Parkinson's disease *** ability to enhance neuroprotection within the enteric nervous system presents exciting *** review addresses the hypothesis thatα-synuclein aggregates originate from the gut and may enter the brain via the vagus *** symptoms preceding motor symptoms support this *** gut-brain signaling during gut dysbiosis contributes to inflammation and neurotransmitter imbalances,emphasizing the potential of microbiota-based *** summary,this review uncovers the complex web of interactions between nutrition,the gut microbiome,steroid hormones,and Parkinson's disease within the gut-brain axis *** these connections not only offers novel therapeutic insi

关键词： diet gut-brain axis microbiome neurodegenerative diseases nutrition Parkinson's disease progesterone steroid hormones

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Review of the Cretaceous avian diversity of Antarctica:a changing scenario for the evolution of early Neornithine birds

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Advances in Polar Science 2024年第1期35卷 1-13页

作者： Carolina ACOSTA HOSPITALECHE Facundo IRAZOQUI paula BONA Ariana PAULINA-CARABAJAL División Paleontología de Vertebrados Museo de La PlataFacultad de Ciencias Naturales y MuseoUniversidad Nacional de La PlataPaseo del Bosque s/nLa Plata B1900FWAArgentina Consejo Nacional de Investigaciones Científicas y Técnicas(CONICET) Buenos Aires C1425FQBArgentina División Paleontología Vertebrados Museo de La Plata-Anexo ⅡFacultad de Ciencias Naturales y MuseoUniversidad Nacional de La PlataCalles 122 y 60La Plata B1900FWAArgentina Instituto de Investigaciones en Biodiversidad y Medioambiente(INIBIOMA) Consejo Nacional de Investigaciones Científicas y Técnicas-Universidad Nacional del ComahueSan Carlos de Bariloche R8400GAMArgentina

The worldwide record of Cretaceous Neornithes and Neornithine-like birds is both controversial and poorly ***,in recent years,the Antarctic continent has yielded a substantial number of Maastrichtian avian specimens,contributing significantly to our understanding of the early evolution of this ***,the keen interest and collaborative efforts of various paleornithologists have resulted in a wealth of knowledge,which we have thoroughly reviewed,updated,and discussed in the context of recent discoveries.

关键词： Maastrichtian Antarctic Peninsula Vega Island Seymour(Marambio)Island Neornithes birds

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Functional Roux-en-Y Gastric Bypass (F-RYGB), with Preservation of Duodenal Access: Report of Two Revisional Cases of Sleeve Gastrectomy

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Surgical Science 2024年第3期15卷 135-158页

作者： Victor Ramos Mussa Dib Carlos Augusto Scussel Madalosso Paulo Reis Esselin de Melo Rui ribeiro paula Volpe Carlos Eduardo Domene Victor Dib Institute Manaus Brazil Gastrobese Clinic Passo Fundo Brazil Paulo Reis Institute of Bariatric Surgery Goi&#226nia Brazil Alfredo Nasser University Center (UNIFAN) Goi&#226nia Brazil Lusíadas Amadora Hospital Lisboa Portugal Integrated Center for Advanced Medicine (CIMAMED) S&#227o Paulo Brazil

Objective: This case report aimed to demonstrate a possible neuromuscular effect of Latarjet nerves transection or truncal vagotomy, in association with sleeve gastrectomy plus antrojejunostomy, in order to reproduce a Roux-en-Y gastric bypass (RYGB) mechanistic principles, in patients with previous Sleeve Gastrectomy (SG) who had had weight regain, with or without concomitant gastroesophageal reflux disease (GERD). Background: Sleeve gastrectomy (SG) is one of the most frequently performed bariatric operations worldwide. Nevertheless, weight regain and gastroesophageal reflux disease (GERD) have been consistently demonstrated, in association with this technique, which may require a revisional procedure. RYGB is an option in such a situation but, implies in gastrointestinal exclusions, which represents a shortcoming of this revision. Surpassing this inconvenient would be of great value for the patients. Methods: We describe herein two cases of SG revision for weight regain and GERD, with a follow-up of one year. Gastroesophageal reflux disease was evaluated by validated questionnaire, upper endoscopy, seriography, high resolution manometry (HRM) and impedance pHmetry (I-pHmetry), in the pre and postoperative periods. A re-Sleeve Gastrectomy with antrojejunal anastomosis was done in both cases, after informed consents. The Latarjet nerves were transected in one case, due to a bleeding in the left gastric vessels and a truncal vagotomy was required in the other, to appropriately treat an associated hiatal hernia. Results: In the postoperative evaluation it was observed a pyloric spasm in both cases, during seriography and endoscopy, kept until the one-year follow-up. There was unidirectional contrast flow to the gastrointestinal anastomosis, filling the jejunal limb, in radiologic contrast study. No contrast passed through the pylorus. Nonetheless, the duodenum was kept endoscopically accessible. In the one-year evaluation, weight loss was adequate and GERD resolution

关键词： Roux-en-Y Gastric Bypass Sleeve Gastrectomy Jejuno Gastric Bypass Vagus Nerve Vagotomy Bariatric Surgery

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Influence of Statins and Fibrates Drugs on Bone Health and Regeneration

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Journal of Biomaterials and Nanobiotechnology 2024年第1期15卷 1-24页

作者： Octavio Santiago Ivan Nadir Camal Ruggieri Marina ribeiro Paulini Valéria paula Sassoli Fazan João Paulo Mardegan Issa Sara Feldman LABOATEM Laboratory of Bone Biology and Tissue Engineering School of Medicine Rosario National University Ros&#225rio Argentina School of Dentistry of Ribeirã o Preto University of S&#227o Paulo (FORP/USP) Ribeir&#227o Preto S&#227o Paulo Brazil School of Medicine of Ribeirã o Preto University of S&#227o Paulo (FMRP/USP) Ribeir&#227o Preto S&#227o Paulo Brazil

In the medical and dental field, the importance and need for the study of materials and drugs for use as bone grafts or regeneration in injured areas due to the presence of fractures, infections or tumors that cause extensive loss of bone tissue is observed. Bone is a specialized, vascularized and dynamic connective tissue that changes throughout the life of the organism. When injured, it has a unique ability to regenerate and repair without the presence of scars, but in some situations, due to the size of the defect, the bone tissue does not regenerate completely. Thus, due to its importance, there is a great development in therapeutic approaches for the treatment of bone defects through studies that include autografts, allografts and artificial materials used alone or in association with bone grafts. Pharmaceuticals composed of biomaterials and osteogenic active substances have been extensively studied because they provide potential for tissue regeneration and new strategies for the treatment of bone defects. Statins work as specific inhibitors of 3-hydroxy-3-methyl-glutaryl coenzyme A reductase (HMG-CoAreductase). They represent efficient drugs in lowering cholesterol, as they reduce platelet aggregation and thrombus deposition;in addition, they promote angiogenesis, reduce the β-amyloid peptide related to Alzheimer’s disease and suppress the activation of T lymphocytes. Furthermore, these substances have been used in the treatment of hypercholesterolemia and coronary artery disease. By inhibiting HMG-CoAreductase, statins not only inhibit cholesterol synthesis, but also exhibit several other beneficial pleiotropic effects. Therefore, there has been increasing interest in researching the effects of statins, including Simvastatin, on bone and osteometabolic diseases. However, statins in high doses cause inflammation in bone defects and inhibit osteoblastic differentiation, negatively contributing to bone repair. Thus, different types of studies with different conc

关键词： Bone Statins Rosuvastatin Sinvastatin Fibrates Fenofibrate Bone Regeneration

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Analysis of a passive ankle exoskeleton for reduction of metabolic costs during walking

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Defence Technology（防务技术） 2024年第7期37卷 62-68页

作者： Luís Quinto Pedro Pinheiro Sergio B.Goncalves Ivo Roupa paula Simoes Miguel Tavares da Silva CINAMIL Academia MilitarInstituto Universitario MilitarLisbonPortugal IDMEC Instituto Superior TecnicoUniversidade de LisboaLisbonPortugal

Modern conflicts demand substantial physical and psychological exertion,often resulting in fatigue and diminished combat or operational *** exoskeletons have been developed recently to address these challenges,presenting various limitations that affect their operational or everyday *** article evaluates the performance of a dual-purpose passive ankle exoskeleton developed for the reduction of metabolic costs during walking,seeking to identify a force element that could be applied to the target *** on the 6-min walk test,twenty-nine subjects participated in the study using three different force *** results indicate that it is possible to reduce metabolic expenditure while using the developed ***,the comfort and range of motion results verify the exoskeleton's suitability for use in uneven terrain and during extended ***,the choice of the force element should be tailored to each user,and the control system should be adjustable to optimise the exoskeleton's performance.

关键词： Ankle passive exoskeleton Metabolic cost reduction Dual-use exoskeleton Gait Biomechanics

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Sleeve Gastrectomy with Duodenal Transit Bipartition (S-DTB): Preliminary Results and Technical Aspects of Its Metabolic Structure

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Surgical Science 2024年第4期15卷 244-264页

作者： Paulo Reis Esselin de Melo Ricardo Zorron Victor Ramos Mussa Dib Carlos Augusto Scussel Madalosso Rui ribeiro Thonya Cruz Braga paula Volpe Carlos Eduardo Domene Paulo Reis Institute Goiania GO Brazil Alfredo Nasser University Center (UNIFAN) Goiania GO Brazil Department of Bariatric and Metabolic Surgery CUF Descobertas Hospital Lisbon Portugal Victor Dib Institute Manaus AM Brazil Gastrobese Clinic Passo Fundo RS Brazil Lusiadas Amadora Hospital Lisbon Portugal Clianest Group Renaissance Hospital Goiania GO Brazil Integrated Center for Advanced Medicine (CIMAMED) Sao Paulo Brazil

Obesity is a significant and escalating health issue both in Brazil and globally, with over 650 million overweight adults worldwide. The treatment of obesity can be performed clinically, endoscopically or surgically;surgical treatment proves to be safe and more effective in terms of weight loss and long-term maintenance. Objective: This study aimed to monitor the progress of weight loss and comorbidity control in patients undergoing sleeve gastrectomy with duodenal bipartition. Methods: This pilot project involved 8 patients divided into 2 arms. In the first arm, patients underwent sleeve gastrectomy with Roux-en-Y duodenoileal transit bipartition (S-RYDITB), while in the second arm, patients underwent sleeve gastrectomy with Roux-en-Y duodenojejunal transit bipartition (S-RYDJTB). Both procedures involved Roux-en-Y reconstruction without duodenal exclusion. In S-RYDITB, the duodenal-ileal anastomosis was performed 300 cm from the ileocecal valve (ICV), creating a 250 cm common channel and a 50 cm alimentary channel. In S-RYDJTB, a biliopancreatic loop was created 200 cm from the angle of Treitz, with a 1 m alimentary channel. Results: Five patients underwent the procedures, with one undergoing S-RYDITB and four undergoing S-RYDJTB. No adverse events such as hospitalizations, readmissions, reoperations, fistulas, bleeding, pulmonary embolism, diarrhea, dumping syndrome, or hypoglycemia occurred during the study period. The mean length of hospital stay was 2 days. The average BMI decreased from 37.27 kg/m2 preoperatively to 29.48 kg/m2 after 6 months. The significant percentage of weight loss was 21.22%, with excess weight loss of 63.6%. Ninety-five percent remission of comorbidities, including hypercholesterolemia, hypertriglyceridemia, diabetes, hypertension, steatosis, and pre-diabetes. Two patients underwent sleeve gastrectomy with duodenal bipartition using a single anastomosis. Conclusion: Duodenal switch surgery has gained worldwide recog

关键词： Obesity Bariatric Surgery Metabolic Surgery Duodenal Switch

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Screening of Environmental Bacterial Strains for Wild Aedes Mosquito Larval Biocontrol

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Open Journal of Applied Sciences 2024年第9期14卷 2431-2442页

作者： Alexandre Paulo Machado Liliana Alves Correa Gabriel de paula Albuquerque Ana Lúcia Maria ribeiro Rosina Djunko Miyazaki Jéssica da Silva Gava Dyego Bichofre Cruz Laboratory of Microbiology Medical Faculty Federal University of Mato Grosso Mato Grosso Brazil Laboratory of Entomology Institute of Biosciences Federal University of Mato Grosso Mato Grosso Brazil

The effectiveness of current control measures against Aedes mosquitoes remains low, resulting in persistent epidemics in urban areas. The emergence of resistant mosquito populations to chemical insecticides highlights the need for novel, environmentally friendly, cost-effective control strategies. This study explored the potential of environmental bacterial isolates to biocontrol wild Aedes larvae. Initially, we collected bacterial samples from infectious masses of Aedes fluviatilis larvae. The isolated bacteria were identified using biochemical, enzymatic, and molecular methods, including 16S rRNA sequencing and MALDI-TOF. Previously, Aeromonas hydrophila and Bacillus thuringiensis isolated from these infectious masses showed limited Aedes larval inhibition. Consequently, we screened additional environmental isolates from the bacteriotheque. Six isolates previously identified were tested: Chromobacterium violaceum, Enterobacter cloacae, Bacillus cereus, Bacillus sphaericus, and two strains of Bacillus thuringiensis israelensis. Among these strains, B. thuringiensis and C. violaceum exhibited significant inhibitory activities against wild Aedes larvae. Bacillus thuringiensis cultures grown under daylight conditions showed a slight ability to inhibit Aedes larvae. The potential of B. thuringiensis and C. violaceum strains studied, along with optimized culture growth conditions, will be further investigated to develop bioinsecticide products to provide safer and more sustainable alternatives for controlling larvae of Aedes mosquitoes.

关键词： Bacillus thuringiensis Chromobacterium violaceum Aedes Biocontrol Larval Inhibition

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Perceived value of microfinance and SME performance: The role of exploratory innovation

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International Journal of Innovation Studies 2024年第2期8卷 172-185页

作者： Christian Sarfo Jing A.Zhang Conor O'Kane paula O'Kane Department of Management University of LincolnBrayford PoolLincoln LN67TSUnited Kingdom Department of Management Otago Business SchoolUniversity of OtagoPO Box 56Dunedin9054New Zealand

This study examines how perceived value of microfinance and exploratory innovation affect small and medium-sized enterprises(SME)performance in the context of a developing *** on the strategic innovation and microfinance literature,we hypothesize that(1)perceived value of microfinance affects exploratory innovation and SME performance,and(2)exploratory innovation serves as an effective mechanism through which microfinance enhances SME *** employ partial least squares structural equation modeling(PLS-SEM)to test our *** a sample of 581 Ghanaian SMEs with microfinance,the results of the PLS SEM support our *** further conducted a qualitative analysis of comments provided by the SMEs(n=144)to gain a deeper understanding of exploratory innovation in developing *** findings show that SMEs purposefully attempt to strengthen their exploratory inno-vation in *** discuss the theoretical and practical implications of these findings as well as future research avenues.

关键词： Perceived value of microfinance Exploratory innovation SME performance

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Attaching CF3 groups to organic molecules using trifluoroacetates via ion-shielding photoelectrocatalysis

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Science China Chemistry 2024年第11期 3495-3497页

作者： paula Visiedo-Jiménez Francisco Juliá-Hernández Departamento de Química Inorgánica Facultad de Química Universidad de MurciaCampus de Espinardo

Fluorinated molecules play a protagonist role in pharmaceuticals, agrochemicals, and materials. The incorporation of fluoroalkyl groups into organic compounds provides them with unique chemical properties that are key...

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Attaching CFgroups to organic molecules using trifluoroacetates via ion-shielding photoelectrocatalysis

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Science China Chemistry 2024年

作者： paula Visiedo-Jiménez Francisco Juliá-Hernández Departamento de Química Inorgánica Facultad de Química Universidad de MurciaCampus de Espinardo

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