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Expression of anti-Mullerian hormone receptor on the appendix testis in connection with urological disorders

Asian Journal of Andrology 2013年第3期15卷 400-403页

作者： Kornel Kistamas Olga Ruzsnavszky Andrea Telek livia kosztka Ilona Kovacs Beatrix Dienes Laszlo Csernoch Tamas Jozsa Department of Physiology Medical and Health Science Center University of Debrecen Debrecen 4032 Hungary Department of Pathology Kenezy Gyula Hospital Debrecen 4032 Hungary Department of Pediatrics Medical and Health Science Center University of Debrecen Debrecen 4032 Hungary Department of Pediatric Surgery Division of Urology Astrid Lindgren Children's Hospital Karolinska University Hospital Stockholm SE-171 76 Sweden

The female internal sex organs develop from the paramesonephric （Mullerian） duct. In male embryos, the regression of the Mullerian duct is caused by the anti-Mullerian hormone （AMH）, which plays an important role in the process of testicular descent. The physiological remnant of the Mullerian duct in males is the appendix testis （AT）. In our previous study, we presented evidence for the decreased incidence of AT in cryptorchidism with intraoperative surgery. In this report, the expression of the anti-Mullerian hormone receptor type 2 （AMHR2）, the specific receptor of AMH, on the AT was investigated in connection with different urological disorders, such as hernia inguinalis, torsion of AT, cysta epididymis, varicocele, hydrocele testis and various forms of undescended testis. The correlation between the age of the patients and the expression of the AMHR2 was also examined. Reverse transcriptase-polymerase chain reaction （RT-PCR） and immunohistochemistry were used to detect the receptor＇s mRNA and protein levels, respectively. We demonstrate that AMHR2 is expressed in the ATs. Additionally, the presence of this receptor was proven at the mRNA and protein levels. The expression pattern of the receptor correlated with neither the examined urological disorders nor the age of the patients; therefore, the function of the AT remains obscure.

关键词： anti-Mullerian hormone receptor (AMHR) appendixtestis (AT) hernia inguinal is retention testis testicular descent testisretractile

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How dopamine tunes parvalbumin interneurons in the hippocampus:new experimental observations in Alzheimer's disease

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Neural Regeneration Research 2025年第5期20卷 1405-1406页

作者： livia La Barbera Paraskevi Krashia Annalisa Nobili Department of Medicine and Surgery UniversitàCampus Bio-Medico di RomaViaÁlvaro del PortilloRomeItaly Department of Experimental Neurosciences IRCCS Santa Lucia FoundationVia del Fosso di FioranoRomeItaly Department of Science and Technology for Sustainable Development and One Health UniversitàCampus Bio-Medico di RomaViaÁlvaro del PortilloRomeItaly

Despite decades of dedicated resea rch,Alzheimer's disease (AD) is an age-related and progressive neurodegenerative disorder for which the mechanisms of onset are sti unc *** is cha racterized by featured histological alterations including amyloid-beta (AB) plaque deposition,accumulation of neurofibrillary to ngles of hyperphosphorylated-tau,and neuronal loss,accompanied by progressive cognitive decline and behavioral changes.

关键词： Alzheimer alterations dopamine

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The Impact of Sleep Patterns on Academic Performance and Social Integration among Medical Students

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Journal of Biosciences and Medicines 2024年第8期12卷 189-198页

作者： livia-Ștefana Găgilă Tudor Cojocaru Giulia-Mihaela Pînzariu Daria Georgiana Sauciuc Diana Elena Lupașcu livia Amira Sauciuc Ioana Ilinca Ursachianu Elena Cojocaru Faculty of Medicine University of Medicine and Pharmacy Grigore T. Popa Iai Romania Morpho-Functional Sciences II Department Grigore T. Popa University of Medicine and Pharmacy Iasi Romania

Introduction: The impact of sleep on student life is crucial, particularly for those in demanding fields such as medicine. This study examines the relationships between sleep patterns, academic performance, and social integration among medical students, who often face irregular sleep cycles and sleep deprivation due to rigorous academic demands. Aim: This study aims to assess how sleep issues affect academic achievement and social relationships among medical students. Method: Data were collected from 215 medical students through surveys and academic records. Quantitative data provided insights into sleep quality and academic performance, while qualitative interviews explored the effects of sleep on social interactions. Results: The findings revealed a significant correlation between sleep quality and academic performance, with students reporting better sleep hygiene achieving higher grades. Qualitative data indicated that poor sleep negatively impacts social interactions, leading to feelings of isolation and reduced social participation. Conclusions: The study highlights the importance of promoting good sleep practices in medical schools to enhance academic success and social well-being. Interventions aimed at improving sleep quality may help reduce burnout and improve overall well-being among medical students. Future research should focus on longitudinal studies to better understand the long-term effects of sleep on academic and social outcomes in this population.

关键词： Student Medicine Sleep Quality Academic Performance

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livia Kohn, Zhuangzi： Text and Context （reviewed by Martin Schonfeld）

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Frontiers of Philosophy in China 2017年第2期12卷 328-334页

作者： livia Kohn University of South Florida

livia Kohn＇s Zhuangzi： Text and Context is a comprehensive monograph on the great Chinese philosopher Zhuangzi 荘子（Chuang Tzu, d. 286 BCE）. The book is divided into 24 chapters, a bibliography, and an index. The chapters are arranged in a loose sequence that begins with textual and historical information about the Book of Zhuangzi 荘子, continues with interpretations of key topics and expositions of relevant contexts, and ends with Zhuang zi-related forays into environmental ethics and contemporary concerns.

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Importance of nutrition in inflammatory bowel disease

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World Journal of Gastroenterology 2009年第17期15卷 2081-2088页

作者： Alfredo José Lucendo livia Cristina De Rezende Department of Gastroenterology Hospital General de Tomelloso Vereda de Socuéllamos s/n. 13700 Tomelloso (Ciudad Real) Spain

Inflammatory bowel disease （IBD） results from the interaction between an individual＇s immune response and precipitant environmental factors, which generatean anomalous chronic inflammatory response in thosewho are genetically predisposed. Various feeding practices have been implicated in the origin of IBD based on epidemiological observations in developed countries, but we do not have solid evidence for the etiological role played by specific food types. IBD is associated with frequent nutritional deficiencies, thepattern and severity of which depends on the extent,duration and activity of the inflammation. Nutritional support allows these deficiencies in calories, macro and micronutrients to be rectified. Enteral nutrition is also aprimary therapy for IBD, especially for Crohn＇s disease,as it allows the inflammatory activity to be controlled,kept in remission, and Drevents or delays the need forsurgery. Nutritional support is especially important in childhood IBD as an alternative to pharmacological treatment. This report discusses the complex relationship between diet and IBD.

关键词： Nutritional support Inflammatory boweldisease Enteral diet Crohn's disease Ulcerative colitis

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Calcium handling:a strategy to fight neurodegeneration in Alzheimer's disease

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Neural Regeneration Research 2023年第12期18卷 2685-2686页

作者： livia La Barbera Elena Spoleti Marcello D’Amelio Department of Sciences and Technologies for Humans and Environment UniversitàCampus Bio-Medico di RomaRomeItaly Department of Experimental Neurosciences IRCCS Santa Lucia FoundationRomeItaly Department of Medicine and Surgery UniversitàCampus Bio-Medico di RomaRomeItaly

In the last few years,preclinical and clinical studies identified the ventral tegmental area(VTA)as one of the first brain regions to be affected in the prodromal phase of Alzheimer's disease(AD).The VTA is a deep midbrain nucleus rich in dopaminergic neurons that innervates and releases dopamine(DA)in several cortical and subcortical brain *** plays a crucial role in the modulation of both cognitive and noncognitive functions and failure of its release underlies both cognitive and neuropsychiatric symptoms in patients with AD.

关键词： Alzheimer clinical release

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Ultrasound-based techniques for the diagnosis of liver steatosis

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World Journal of Gastroenterology 2019年第40期25卷 6053-6062页

作者： Giovanna Ferraioli livia Beatriz Soares Monteiro Dipartimento di Scienze Clinico-Chirurgiche Diagnostiche e PediatricheMedical School University of PaviaPavia 27100Italy Clinical Sciences and Infectious Diseases Department Fondazione IRCCS Policlinico S.MatteoPavia 27100Italy Centro Universitário Barao de Mauá Ramos de AzevedoSao Paulo 14090-180Brazil

Non-alcoholic fatty liver disease(NAFLD)is the leading cause of diffuse liver *** accurate estimate of the fat in the liver is important in the diagnostic work-up of patients with NAFLD because the degree of liver steatosis is linked to the metabolic syndrome and the cardiovascular ***(US)B-mode imaging allows to subjectively estimate the fatty infiltration in the liver;however,it has a low performance for the detection of mild *** US is based on the analysis of the radiofrequency echoes detected by an US system,and it allows to calculate a backscatter coefficient or an attenuation coefficient or the sound *** estimation of the backscatter coefficient is rather cumbersome and requires the use of a phantom for addressing all sources of *** attenuation parameter(CAP)available on the FibroScan system(Echosens,France)measures the attenuation of the US *** is accurate in grading fatty infiltration-even though there is an overlap between consecutive grade of liver steatosis-and the values are not influenced by liver *** US manufacturers are developing or have already developed software for quantifying the attenuation of the US *** results show that proprietary technologies implemented in US systems seem more accurate than CAP for grading liver *** available method for quantifying liver steatosis is based on the computation of the sound speed and the initial results appear promising.

关键词： Non-alcoholic fatty liver disease Chronic liver disease Ultrasound Controlled attenuation parameter Quantitative ultrasound Attenuation imaging

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Convergent pathways of the gut microbiota–brain axis and neurodegenerative disorders

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Gastroenterology Report 2022年第1期10卷 90-107页

作者： Carolina Gubert Juciano Gasparotto livia H.Morais Florey Institute of Neuroscience and Mental Health Melbourne Brain CentreUniversity of MelbourneParkvilleVictoriaAustralia Instituto de Ciencias Biomedicas Universidade Federal de AlfenasRua Gabriel Monteiro da SilvaAlfenasMinas GeraisBrasil Division of Biology&Biological Engineering California Institute of TechnologyPasadenaCAUSA

Recent research has been uncovering the role of the gut microbiota for brain health and *** studies highlight the role of gut microbiota on regulating brain function and behavior through immune,metabolic,and neuronal *** this review we provide an overview of the gut microbiota axis pathways to lay the groundwork for upcoming sessions on the links between the gut microbiota and neurogenerative *** also discuss how the gut microbiota may act as an intermediate factor between the host and the environment to mediate disease onset and *** on the current literature,we further examine the potential for different microbiota-based therapeutic strategies to prevent,to modify,or to halt the progress of neurodegeneration.

关键词： gut microbiota-brain axis neurodegeneration inflammation microbial metabolism gut microbiota

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Structure of human NCC:insights into the inhibition mechanism of thiazides

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Signal Transduction and Targeted Therapy 2023年第8期8卷 3549-3550页

作者： livia de Souza Goncalves Pattareeya Yottasan Onur Cil Department of Pediatrics University of CaliforniaSan FranciscoSan FranciscoCAUSA

A recent study published in Nature by Fan et al.1 identified the structure of human NCC alone and in complex with a thiazide diuretic using cryo-electron *** extensive clinical use of NCC inhibitor thiazide diuretics since 1950s,the structure and inhibition mechanisms of NCC have remained elusive,and Fan et *** is a major step toward better understanding the NCC biology and mechanism of action of thiazide ***-chloride cotransporter(NCC,also known as SLC12A3)is expressed in the kidney where it facilitates electroneutral NaCl absorption.

关键词： azide mechanism

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Kinetic-compartmental modelling of potassium-containing cellulose feedstock gasification

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Frontiers of Chemical Science and Engineering 2018年第4期12卷 708-717页

作者： Attila Egedy livia Gyurik Tamas Varga Jun Zou Norbert Miskolczi Haiping Yang Institute of Chemical and Process Engineering University of PannoniaVeszprem 8200Hungary State Key Laboratory of Coal Combustion Huazhong University of Science and TechnolgyWuhan 430074China

Biomass is of growing interest as a secondary energy source and can be converted to fuels with higher energy density especially by pyrolysis or gasification. Understanding the mechanism and the kinetics of biomass pyrolysis (thermal decomposition) and gasification (conversion of organic material to gases) could be the key to the design of industrial devices capable of processing vast amounts of biomass feedstock. In our work real product components obtained in pyrolysis were took into consideration as well as char and oil as lumped components, and the kinetic constants for a biomass model compound (cellulose) pyrolysis and gasification were identified based on a proposed simplified reaction mechanism within a compartment model structure. A laboratory scale reactor was used for the physical experiments containing consecutive fast pyrolysis and gasification stages using alkali metal (K) containing feedstock, which has a significant effect on the cellulose pyrolysis and gasification. The detailed model was implemented in MATLAB/Simulink environment, and the unknown kinetic parameters were identified based on experimental data. The model was validated based on measurement data, and a good agreement was found. Based on the validated first principle model the optimal parameters were determined as 0.15 mL/min steam flow rate, and 4% K content.

关键词： biomass pyrolysis kinetic parameter identification compartment modelling optimisation

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