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T2-weighted imaging-based radiomic-clinical machine learning model for predicting the differentiation of colorectal adenocarcinoma

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World Journal of Gastrointestinal Oncology 2024年第3期16卷 819-832页

作者： Hui-Da Zheng Qiao-Yi Huang Qi-Ming Huang Xiao-Ting Ke Kai Ye Shu Lin Jian-Hua Xu Department of Gastrointestinal Surgery The Second Affiliated Hospital of Fujian Medical UniversityQuanzhou 362000Fujian ProvinceChina Department of Gynaecology and Obstetrics The Second Affiliated Hospital of Fujian Medical UniversityQuanzhou 362000Fujian ProvinceChina Department of Computed Tomography/Magnetic Resonance Imaging The Second Affiliated Hospital of Fujian Medical UniversityQuanzhou 362000Fujian ProvinceChina Centre of Neurological and Metabolic Research The Second Affiliated Hospital of Fujian Medical UniversityQuanzhou 362000Fujian ProvinceChina group of neuroendocrinology Garvan Institute of Medical ResearchSydneyNSW 2010Australia

BACKGROUND The study on predicting the differentiation grade of colorectal cancer(CRC)based on magnetic resonance imaging(MRI)has not been reported *** a non-invasive model to predict the differentiation grade of CRC is of great *** To develop and validate machine learning-based models for predicting the differ-entiation grade of CRC based on T2-weighted images(T2WI).METHODS We retrospectively collected the preoperative imaging and clinical data of 315 patients with CRC who underwent surgery from March 2018 to July *** were randomly assigned to a training cohort(n=220)or a validation cohort(n=95)at a 7:3 *** were delineated layer by layer on high-resolution *** absolute shrinkage and selection operator regression was applied to screen for radiomic *** and clinical models were constructed using the multilayer perceptron(MLP)*** radiomic features and clinically relevant variables(selected based on a significance level of P<0.05 in the training set)were used to construct radiomics-clinical *** performance of the three models(clinical,radiomic,and radiomic-clinical model)were evaluated using the area under the curve(AUC),calibration curve and decision curve analysis(DCA).RESULTS After feature selection,eight radiomic features were retained from the initial 1781 features to construct the radiomic *** different classifiers,including logistic regression,support vector machine,k-nearest neighbours,random forest,extreme trees,extreme gradient boosting,light gradient boosting machine,and MLP,were used to construct the model,with MLP demonstrating the best diagnostic *** AUC of the radiomic-clinical model was 0.862(95%CI:0.796-0.927)in the training cohort and 0.761(95%CI:0.635-0.887)in the validation *** AUC for the radiomic model was 0.796(95%CI:0.723-0.869)in the training cohort and 0.735(95%CI:0.604-0.866)in the validation *** clinical model achieved an AUC of 0.7

关键词： Radiomics Colorectal cancer Differentiation grade Machine learning T2-weighted imaging

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Maternal Separation Affects Mothers’ Affective and Reproductive Behaviors as Well as Second Offspring’s Emotionality

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Journal of Behavioral and Brain Science 2013年第5期3卷 409-414页

作者： R. Bousalham B. Benazzouz A. El Hessni A. Ouichou A. Mesfioui Laboratory of Genetic Neuroendocrinology and Biotechnology Faculty of Sciences Ibn Tofail University Kenitra Morocco

Daily separation of rat pups from their mothers while the preweaning period has an impact on behavior and stress response of pups. We hypothesized that maternal separation may create a depression-like state in mother rats from which we separate the rat pups and decrease their reproductive function and fertility. Also, we aimed to evaluate the transmission degree of depression and anxiety across generations. Females aged 3 months were divided in two groups of 10 rats each. After a first mating and a first parturition, we conducted maternal separation 3 h during 22 days for the experienced group while the control group mothers kept their pups. At 4 months of age, females underwent behavioral tests and a second mating. Second generation’s pups were also subjected to behavioral tests. Behavioral tests showed that mothers which experienced separation were more depressive and anxious than control ones, also they had a lower litter size. Rats pups of the second generation whose mothers experienced maternal separation also revealed behavior changes akin to depression and anxiety. Thus, maternal separation causes depressive and anxious-likestates on mother rats which experienced separation and has an impact on their litter size. Also, consequences of maternal separation seem to last throughout generations.

关键词： Maternal Separation Affective Disorder Mothers’ Rat Reproduction Offspring of Second Generation

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Pinealectomy and Exogenous Melatonin Regulate Anxiety-Like and Depressive-Like Behaviors in Male and Female Wistar Rats

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Neuroscience & Medicine 2012年第4期3卷 394-403页

作者： El Mrabet Fatima Zahra Ouaaki Siham Mesfioui Abdelhalim El Hessni Aboubakr Ouichou Ali Laboratory of Genetics Neuroendocrinology and Biotechnology Unit of Nervous and Endocrine Physiology Department of Biology Faculty of Sciences University Ibn Tofail Kenitra Morocco

The main objective of this work was to 1) study the influence of endogenous melatonin (Mel) abolishment via pinealectomy and 2) explore exogenous Mel effect on anxiety-like and depressive-like behavior in male and female rats. Rats were shamoperated (Sh) or pinealectomized (Px) and following subgroups were selected 1) Px/NaCl (0.9%) and Sh/NaCl (0.9%) : rats injected subcutaneously, once daily for 8 weeks, with saline solution NaCl (0.9%) as vehicle;2) Px/Mel (4 mg/Kg) and Sh/Mel (4 mg/Kg): Rats similarly injected with 4 mg/Kg of Mel. All animals were housed under a photoperiod of (LD:16/8). After different treatments animals were tested in the open-field test (OFT), elevated plus maze test (EPM) to determine anxiety-like behavior, and forced swimming test (FST) to evaluate depressive-like level. Our results revealed that level of anxiety-like and depressive-like behavior are significantly higher in Px/NaCl (0.9%) when compared to Sh/NaCl (0.9%) group, suggesting that pinelectomy induced an anxiogenic and depressant effects. The Px effects would be due to the absence of endogenous Mel synthesis and release. Additionally, we clearly demonstrated that the level of anxiety-like and depressive-like behavior are higher in Px/Mel (4 mg/Kg) and Sh/Mel when compared respectively to Px/NaCl (4 mg/Kg) and Sh/NaCl groups suggesting an anxiolytic and antidepressant effects of exogenous Mel. Behavioral responses were sex dependent since the difference between females and males, especially, after melatonin administration, were statistically significant. These experiments provide evidence that pinealectomy and Mel regulated emotionally behavior in male and female rats.

关键词： Pinealectomy Melatonin Sex Dependent Anxiety Depression Behavioral Tests

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An Update on Pathophysiology and Medical Management of Endometriosis

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Advances in Reproductive Sciences 2016年第2期4卷 53-73页

作者： Kulvinder Kochar Kaur Gautam Allahbadia Department of Obstetrics and Gynaecology (Reproductive neuroendocrinology and Infertility) Dr. Kulvinder Kaur Centre for Human Reproduction Jalandhar India Rotunda—A Centre for Human Reproduction Mumbai India

Endometriosis is an inflammatory oestrogen dependent disease defined by the presence of endometrial glands and stroma at extrauterine sites. The modern advance in treatment of endometriosis management is tackling the debilitating pain it causes, besides the infertility in patients desiring fertility in reproductive age group. This can be achieved by surgical or medical means, although in most cases a combination of both treatments is required. Usually, long term treatment is required in most cases. Unfortunately in most cases, pain symptoms recur between 6months and 12 months once treatment is stopped. A lot of research has gone in understanding the pathogenesis and further medical management of endometriosis besides surgery to be useful in relieving pain and use in patients desiring fertility besides hormonal treatments used earlier like hormonal contraceptives (oral, transdermal or vaginal administration), progestogens, danazol, Gonadotrophic releasing hormone agonist (GnRH), aromatase inhibitors. Newer agents like antiangiogenic drugs, phytochemical agents like resveratrol, TNF-α inhibitors, GnRH antagonists like egalogolix, statins, antiinflammatory agents like COX2 Inhibitors and PPARγ inhibitors like pioglitazone etc., with recent work of combined efficacy of telmesartan of both PPARγ partial agonism along with angiotensin 1 receptor agonism having more efficacy, role of immunomodulators like rapamycin, lipoxin 4 and pentoxyphylline, GnRH antagonists like egalogolix are still under study undergoing phase III trials although preliminary results show promising results with fewer side effects as compared to similar duration of GnRH agonist and much less BMD side effects. Increasing number of trials show the safety of SPRM’s, along with efficacy although disadvantage is suppression of fertility so cannot be used for women desiring fertility. Currently, only mifepristone and ulipristal have received FDA approval for indication in fibroid treatment, MTP and not for

关键词： Antiangiogenic Agents Phytotherapeutics Drugs (Resveratrol) PPAR Gamma Agonism with AT1R Agonism (Telmesartan) GnRH Antagonist (Elagolix) IL-17A SPRM Modulators (Ulipristal) Immunomodulators (Pentoxyphylline) Statins (Atorvastatin)

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Conversion of L-Tryptophan into Melatonin Is the Possible Action Pathway Involved in the Effect of L-Tryptophan on Antidepressant-Related Behavior in Female Rats: Analysis of the Influence of Treatment Duration

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Journal of Behavioral and Brain Science 2013年第4期3卷 362-372页

作者： Sihame Ouakki Fatima Zahra El Mrabet Aboubaker El Hessni Abdelhalem Mesfioui Paul Pévet Ali Ouichou Institute for Cellular and Integrative Neurosciences Strasbourg University Strasbourg France Laboratory of Genetics Neuroendocrinology and Biotechnology Unit of Nervous and Endocrine Physiology Faculty of Sciences Université Ibn Tofail Kenitra Morocco

The aim of this study was to determine the effect of pharmacological doses of melatonin (MEL) and L-tryptophan (L-TRP) on depression-like behavior in female rats submitted to the forced swimming test (FST) after 2, 4, 6 or 8 weeks of treatment. This will allow exploring the different mechanisms of L-TRP actions particularly that due to its conversion into MEL. For this purpose, four groups of 24 rats each were constituted;(group 1: Control): received saline solution NaCl (0.9%), (group 2: MEL4): received 4 mg/Kg of MEL, (group 3: L-TRP4): received 4 mg/Kg of L-TRP and (group 4: L-TRP20): received 20 mg/Kg of L-TRP. Animals of each group were distributed on 4 subgroups of 6 rats submitted to different time treatments. The duration of immobility (TIM) and struggling period (TST) of rats in FST were measured after 2, 4, 6 and 8 weeks of drug treatment and the effects of MEL and L-TRP were compared. Chronical administration of different doses of MEL or L-TRP failed to induce any anti-depressant activity in rats subjected to FST after 2 weeks of treatment. However, after 4 weeks, daily administration of MEL at 4 mg/Kg significantly reduced the immobility period and enhanced struggling time. After 6 weeks, MEL at 4 mg/Kg and L-TRP at 20 mg/Kg were both effective in reducing immobility and increasing struggling movement, their effects being statistically comparable. All treatments were able to significantly reduce immobility time and increase struggling duration after 8 weeks, but L-TRP at 4 mg/Kg was less potent than MEL and L-TRP at 20 g/Kg. The antidepressant-like activity of L-TRP was dose and time dependent, and that of MEL was time dependent. In conclusion, the study showed that at pharmacological doses, MEL and L-TRP have anti-depressant action, and such effect is dependent on time treatment;MEL?is more effective than L-TRP. In conclusion, L-TRP, through MEL, 5-HT or by itself could modulate aminergic neurotransmission in the different brain areas to ensure its beha

关键词： Melatonin L-Tryptophan Depression Forced Swimming Immobility Struggling Female Rats

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rt-PA应用后MMP-2、MMP-9表达的改变及Neuroserpin的影响

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中国神经精神疾病杂志 2003年第4期29卷 258-261,T001页

作者：陈立云曾进胜李常新温红梅解龙昌 Nigel P.Birch 黄如训中山大学附属第一医院神经科脑血管病专科广州510080 Molecular neuroendocrinology Laboratory School of Biological Sciences University of Auckland New Zealand

目的观察重组组织型纤溶酶原激活剂(rt-PA)对血管再通后基质金属蛋白酶-2(MMP-2)、MMP-9表达的影响以及神经源性丝氨酸蛋白酶抑制剂(neuroserpin,NSP)的干预作用。方法应用易卒中型肾血管性高血压大鼠复制大脑中动脉缺血模型,缺血3 h... 详细信息

目的观察重组组织型纤溶酶原激活剂(rt-PA)对血管再通后基质金属蛋白酶-2(MMP-2)、MMP-9表达的影响以及神经源性丝氨酸蛋白酶抑制剂(neuroserpin,NSP)的干预作用。方法应用易卒中型肾血管性高血压大鼠复制大脑中动脉缺血模型,缺血3 h后再灌注并静脉注射rt-PA,于预组在应用rt-PA前脑内注射NSP,1天后处死,常规病理检查,并应用免疫组织化学和原位杂交的方法观察MMP-2、MMP-9在脑组织的表达。结果缺血再灌注后MMP-2、MMP-9表达均升高;应用rt-PA后可见缺血再灌注区有灶性出血及红细胞漏出,同时使MMP-9进一步升高,但对MMP-2影响不大;应用rt-PA的同时使用NSP可以减轻缺血损伤,减少出血的发生,并使升高的MMP-9减少至接近正常水平,但NSP可以使MMP-2表达略有升高。结论 rt-PA溶栓后出血转化的发生可能与MMP-9表达增加有关,溶栓时联合应用NSP可能通过降低rt-PA所致的MMP-9表达上调而减轻溶栓治疗的出血并发症。

关键词： rt-PA MMP-2 MMP-9 重组组织型纤溶酶原激活剂基质金属蛋白酶-2 神经源性丝氨酸蛋白酶抑制剂脑缺血

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Look into my eyes:What can eye-based measures tell us about the relationship between physical activity and cognitive performance?

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Journal of Sport and Health Science 2023年第5期12卷 568-591页

作者： Liye Zou Fabian Herold Sebastian Ludyga Keita Kamijo Notger G.Muller Matthew B.Pontifex Matthew Heath Ryuta Kuwamizu Hideaki Soya Charles H.Hillman Soichi Ando Brandon L.Alderman Boris Cheval Arthur F.Kramer Body-Brain-Mind Laboratory School of PsychologyShenzhen UniversityShenzhen 518060China Research group Degenerative and Chronic Diseases MovementFaculty of Health Sciences BrandenburgUniversity of PotsdamPotsdam 14476Germany Department of Sport Exerciseand HealthUniversity of BaselBasel 4052Switzerland Faculty of Liberal Arts and Sciences Chukyo UniversityNagoya 466-8666Japan Department of Kinesiology Michigan State UniversityEast LansingMI 48824USA School of Kinesiology Faculty of Health SciencesUniversity of Western OntarioLondon ON N6A 3K7Canada Canadian Centre for Activity and Aging University of Western OntarioLondon ONN6A 3K7Canada Graduate Program in Neuroscience University of Western OntarioLondon ONN6A 3K7Canada Laboratory of Exercise Biochemistry and neuroendocrinology Faculty of Health and Sport SciencesUniversity of TsukubaTsukuba 305-0006Japan Sport Neuroscience Division Advanced Research Initiative for Human High Performance(ARIHHP)Faculty of Health and Sport SciencesUniversity of TsukubaTsukuba 305-0006Japan Center for Cognitive and Brain Health Department of PsychologyDepartment of Physical TherapyMovementand Rehabilitation SciencesNortheastern UniversityBostonMA 02115USA Graduate School of Informatics and Engineering The University of Electro-CommunicationsTokyo 182-8585Japan Department of Kinesiology and Health Rutgers UniversityNew BrunswickNew BrunswickNJ 08854USA Swiss Center for Affective Sciences University of GenevaGeneva 1205Switzerland Laboratory for the Study of Emotion Elicitation and Expression(E3Lab) Department of PsychologyUniversity of GenevaGeneva 1205Switzerland Department of Psychology Center for Cognitive and Brain HealthNortheastern UniversityBostonMA 02115USA Beckman Institute University of Illinois at Urbana-ChampaignChampaignIL 61820USA

Background:There is a growing interest to understand the neurobiological mechanisms that drive the positive associations of physical activity and fitness with measures of cognitive *** better understand those mechanisms,several studies have employed eye-based measures(e.g., eye movement measures such as saccades,pupillary measures such as pupil dilation,and vascular measures such as retinal vessel diameter)deemed to be proxies for specific neurobiological ***,there is currently no systematic review providing a comprehensive overview of these studies in the field of exercise-cognition ***,this review aimed to address that gap in the ***:To identify eligible studies,we searched 5 electronic databases on October 23,*** researchers independently extracted data and assessed the risk of bias using a modified version of the Tool for the assEssment of Study qualiTy and reporting in EXercise(TESTEX scale,for interventional studies) and the critical appraisal tool from the Joanna Briggs Institute(for cross-sectional studies).Results:Our systematic review(n=35 studies) offers the following main findings:(a) there is insufficient evidence available to draw solid conclusions concerning gaze-fixation-based measures;(b) the evidence that pupillometric measures,which are a proxy for the noradrenergic system,can explain the positive effect of acute exercise and cardiorespiratory fitness on cognitive performance is mixed;(c) physical training-or fitness-related changes of the cerebrovascular system(operationalized via changes in retinal vasculature) are,in general,positively associated with cognitive performance improvements;(d) acute and chronic physical exercises show a positive effect based on an oculomotor-based measure function(operationalized via antisaccade tasks);and(e) the positive association between cardiorespiratory fitness and cognitive performance is partly mediated by the dopaminergic system(operationalized via spo

关键词： Cognition Exercise Fitness Pupil size RetinaTagedAPTARAEnd

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Effect of Chronic Administration of Cadmium on Anxiety-Like, Depression-Like and Memory Deficits in Male and Female Rats: Possible Involvement of Oxidative Stress Mechanism

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Journal of Behavioral and Brain Science 2018年第5期8卷 240-268页

作者： Mouloud Lamtai Jihane Chaibat Sihame Ouakki Inssaf Berkiks El-Housseine Rifi Aboubaker El Hessni Abdelhalem Mesfioui Ali Tadlaoui Hbibi Hassna Ahyayauch Azzouz Essamri Ali Ouichou Unit of Nervous and Endocrine Physiology Laboratory of Genetics Neuroendocrinology and Biotechnology Faculty of Science University Ibn Tofail Kenitra Morocco Laboratory of Synthesis Organic and Extraction Processes Department of Chemistry Faculty of Science University Ibn Tofail Kenitra Morocco Institut Supé rieur des Professions Infirmiè res et Techniques de Santé (ISPISTS) route Casablanca Rabat Morocco Laboratory of Agro-Resources and Process Engineering Faculty of Science University Ibn Tofail Kenitra Morocco

The main objective of this work is to study the effect of chronic administration of cadmium (Cd) on the level of depression-like, anxiety-like, memory state and oxidative stress in male and female Wistar rats. For this purpose, this study was conducted with 24 rats for each gender. Four groups were constituted: (group 1: Control): received saline solution NaCl (0.9%), (group 2: Cd-0.25;group 3: Cd-0.5;group 4: Cd-1): received daily 0.25 mg/kg, 0.5 mg/kg and 1 mg/kg of Cd respectively during 8 weeks. After treatment period, animals were tested in the open-field, elevated plus maze tests for anxiety-like behavior, and forced swimming test for depression-like behavior. The Y maze was used to evaluate the working memory and the Morris Water Maze, to evaluate space learning and spatial memory. The results revealed that in males, all doses of Cd provoke depression-like, while in females only the group treated with 1 mg/kg Cd shows elevated depression-like behavior. In regard to anxiety-like behavior, Cd induces an anxiogenic effect in both genders tests. In the Y-Maze test, both males and females expressed a low percentage of alternations, suggesting that working memory was affected by Cd at 1 mg/kg. In the Morris Water Maze test, the space learning and spatial memory were significantly impaired in the group Cd-1. Neurochemical analysis showed that levels of nitric oxide and lipid peroxidation in the hippocampus were significantly increased after Cd treatments. Overall analysis of our data revealed that Cd caused significant alterations in the examined parameters that were sex-dependent and dose-dependent.

关键词： Cadmium Depression-Like Anxiety-Like Memory Oxidative Stress

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