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Role of sex hormones in gastrointestinal motility in pregnant and non-pregnant rats

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World Journal of Gastroenterology 2016年第25期22卷 5761-5768页

作者： Juliana Fernandes Matos Madileine Francely Americo yuri Karen Sinzato Gustavo Tadeu volpato Luciana Aparecida Corá Marcos Felipe Freitas Calabresi Ricardo Brandt Oliveira Debora Cristina Damasceno Jose Ricardo Arruda Miranda Sao Paulo State University BotucatuSP 18618-970Brazil Instituto de Ciencias Biologicas e da Saude Federal University of Mato GrossoBarra do GarcasMT 78600-000Brazil Universidade Estadual de Ciencias da Saude de Alagoas MaceioAL 57010-300Brazil Sao Paulo University Ribeirao PretoSP 14049-900Brazil

AIM: To correlate gastric contractility, gastrointestinal transit, and hormone levels in non-pregnant(estrous cycle) and pregnant rats using noninvasive techniques. METHODS: Female rats(n = 23) were randomly divided into(1) non-pregnant,(contractility, n =6; transit, n = 6); and(2) pregnant(contractility, n = 5; transit, n = 6). In each estrous cycle phase or at 0, 7, 14, and 20 d after the confirmation of pregnancy, gastrointestinal transit was recorded by AC biosusceptometry(ACB), and gastric contractility was recorded by ACB and electromyography. After each recording, blood samples were obtained for progesterone and estradiol determination. RESULTS: In the estrous cycle, despite fluctuations of sex hormone levels, no significant changes in gastrointestinal motility were observed. Days 7 and 14 of pregnancy were characterized by significant changes in the frequency of contractions(3.90 ± 0.42 cpm and 3.60 ± 0.36 cpm vs 4.33 ± 0.25 cpm) and gastric emptying(168 ± 17 min and 165 ± 15 min vs 113 ± 15 min) compared with day 0. On these same days, progesterone levels significantly increased compared with control(54.23 ± 15.14 ng/m L and 129.96 ± 30.52 ng/mL vs 13.25 ± 6.31 ng/mL). On day 14, we observed the highest level of progesterone and the lowest level of estradiol compared with day 0(44.3 ± 15.18 pg/mL vs 24.96 ± 5.96 pg/mL). CONCLUSION: Gastrointestinal motility was unaffected by the estrous cycle. In our data, high progesterone and low estradiol levels can be associated with decreased contraction frequency and slow gastric emptying.

关键词： Reproductive physiological process Sex hormones Gastrointestinal motility Magnetic fields Gastric emptying

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巯基捕收剂浮选细粒的某些特性

矿冶 1998年第2期7卷 21-26页

作者： petrov I A Davydov G I Studencov v v Revazashili I B (Kazmekhanobr,Republic of Kazakhstan) 哈萨克斯坦国家工业生态科技生产联合体

阐明了浮选不同粒级硫化物巯基捕收剂作用的研究。结果表明，当浮选细粒硫化物时，由于黑药的结构特点（有两个非极性基），它比黄药优越。按矿粒在气泡上沿环固着的假说，探讨了使用黄药和黑药时存在不同的矿物－气泡集合体的作用机理... 详细信息

阐明了浮选不同粒级硫化物巯基捕收剂作用的研究。结果表明，当浮选细粒硫化物时，由于黑药的结构特点（有两个非极性基），它比黄药优越。按矿粒在气泡上沿环固着的假说，探讨了使用黄药和黑药时存在不同的矿物－气泡集合体的作用机理。研究结果可用于修正选厂的药剂制度。

关键词：捕收剂细粒浮选巯基捕收剂细矿粒

Supervised vs home-based exercise program in kidney transplant recipients: A pilot pragmatic non-randomized study

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World Journal of Transplantation 2024年第4期14卷 123-132页

作者： Anna Crepaldi Giovanni Piva Nicola Lamberti Michele Felisatti Luca Pomidori yuri Battaglia Fabio Manfredini Alda Storari Pablo Jesús López-Soto Unit of Nephrology University Hospital of FerraraFerrara 44121Emilia-RomagnaItaly Department of Nursing Instituto Maimónides de Investigación Biomédica de CórdobaCordoba 14004AndalusiaSpain Department of Neuroscience and Rehabilitation University of FerraraFerrara 44121Emilia-RomagnaItaly Esercizio vita Medical Fitness Ferrara 44124Emilia-RomagnaItaly Department of Medicine University of VeronaVerona 37100VenetoItaly Department of Nursing Maimonides Biomedical Research Institute of CordobaUniversity of CordobaReina Sofía University HospitalCordoba 14004AndalusiaSpain

BACKGROUND Although the benefits of exercise for kidney transplant recipients(KTRs)have been widely demonstrated,these patients experience several barriers in undertaking a structured exercise program in hospital and non-hospital *** To compare the effects of a supervised moderate-intensity gym-based intervention with a home-based low-intensity walking program on exercise capacity in *** KTRs were asked to choose between two six-month *** first group performed a low-intensity interval walking intervention at home-based exercise intervention (HBex). The second group performed a supervised training program at an adapted physical activitygym (Sgym), including aerobic and resistance training. The outcomes, collected at baseline and at the end of theprograms, included the 6-minute walking test, the peak oxygen consumption (vO_(2)peak) during a treadmill test,the 5-time sit-to-stand test, and blood *** patients agreed to participate and self-selected into the HBex (n = 9) and Sgym (n = 8) groups. Twopatients in the Sgym group dropped out because of familial problems. At baseline, patients in the HBex group weresignificantly older and had lower walking distance, vO_(2)peak, and lower limb strength. Primary outcome changeswere significantly greater in the HBex group than in the Sgym group (52 ± 23 m vs 8 ± 34;P = 0.005). No othersignificant differences between groups were observed. Both groups improved most of the outcomes in the withingroupcomparisons, with significant variations in vO_(2) ***-month moderate-intensity supervised or low-intensity home-based training programs effectively improvedexercise capacity in KTRs. Gym-based programs combine aerobic and resistance training;however, in-homewalking may be proposed for frail KTRs.

关键词： Exercise Transplantation Walking Training Nephrology Kidney disease

The Methodological Way to Diagnostic of Efficiency Active Leaching Materials

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Materials Sciences and Applications 2012年第2期3卷 116-119页

作者： Nikolay N. petrov Roman v. Gorokhov Tatyana N. Musorina Tatyana B. Kasatkina Natalya A. Shkabara Nikolay N. Bukov 不详

It was demonstrated possibility of express diagnostic of characters and prediction efficiency of leaching materials on the bases comparison release rate of active substance and accelerated field tests. It makes on the... 详细信息

关键词： Barrier Diffusion Moderator Release Rate Antifouling Diagnostic of Efficiency

Novel Biomaterial for NCT - “Rigid” Particles of (DNA-gadolinium) Liquid-Crystalline Dispersions

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Journal of Biomaterials and Nanobiotechnology 2011年第3期2卷 281-292页

作者： yuri M. Yevdokimov victor I. Salyanov Sergey v. Akulinichev vladimir M. Skorkin Pavel v. Spirin Nataliya N. Orlova vladimir I. Popenko vladimir S. Prassolov 不详

The formation and physico-chemical properties of biomaterial, based on double-stranded (ds) DNA molecules and bearing high concentration of gadolinium, is described. This “rigid” biomaterial demonstrate a few unique properties: (i) the ds DNA molecules forming complexes with gadolinium are fixed in the spatial structure of “rigid” particles, (ii) an abnormal negative band in the circular dichroism spectrum permits to follow the formation of this biomaterial;(iii) local concentration gadolinium in the content of biomaterial can reach 40%. These properties show that we are dealing with a novel type of biomaterial strongly enriched by gadolinium. This opens a gateway for practical application of this biomaterial for neutron-capture reactions. A first attempt to apply this material for neutron-capture reaction in combination with neutron generator of thermal neutron flux was performed. Positive result obtained at destruction of CHO cells allows one to state that the advantages of this biomaterial are a simple manipulation with it, a possibility to adjust its gadolinium content, long-term stability of its physico-chemical properties, as well as a reduced cost of neutron-capture experiment.

关键词： Liquid-Crystalline DNA Dispersions Cholesterics Circular Dichroism Spectrum Gadolinium Neutron-Capture Therapy

Gallbladder Burkitt's lymphoma mimicking gallbladder cancer:A case report

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World Journal of Gastroenterology 2022年第6期28卷 675-682页

作者： Kiyotaka Hosoda Akira Shimizu Koji Kubota Tsuyoshi Notake Hikaru Hayashi Koya Yasukawa Kentaro Umemura Atsushi Kamachi Takamune Goto Hidenori Tomida Shiori Yamazaki yuri Narusawa Naoko Asano Takeshi Uehara Yuji Soejima Division of Gastroenterological Hepato-Biliary-PancreaticTransplantation and Pediatric SurgeryDepartment of SurgeryShinshu University School of MedicineMatsumoto 390-8621Japan Department of Laboratory Medicine Shinshu University School of MedicineMatsumoto 390-8621Japan

BACKGROUND Malignant lymphoma is a rare form of gallbladder *** of these malignancies are diffuse large B-cell lymphomas or mucosa-associated lymphoid tissue-type lymphomas;however,Burkitt’s lymphoma of the gallbladder is extremely rare,and only two previous reports are available in the ***,we report a rare case of Burkitt’s lymphoma of the gallbladder mimicking gallbladder *** SUMMARY An 83-year-old man with no abdominal complaints was found to have a gallbladder tumor and periportal lymph node enlargement on computed tomography(CT)performed for hypertension *** laboratory data revealed slightly elevated serum levels of carcinoembryonic antigen and soluble interleukin 2 *** examinations revealed two irregular and contrastenhanced masses extending into the gallbladder lumen,but these did not infiltrate the ***,a periportal lymph node had enlarged to 30 *** on these findings,we diagnosed the patient as having gallbladder adenocarcinoma with lymph node metastasis,which was treated using bile duct resection with gallbladder bed resection and periportal lymph node ***,the patient was finally diagnosed as having Burkitt’s *** the surgical margin was pathologically negative,recurrence was noted at the hepatic radical margin and superior pancreaticoduodenal lymph nodes on positron emission tomography/CT soon after ***,he was referred to a hematologist and started receiving treatment with reduced-dose cyclophosphamide,doxorubicin,vincristine,and *** Burkitt’s lymphoma can occur in the *** can be useful in cases with findings suggestive of gallbladder malignant lymphoma.

关键词： Gallbladder Malignant lymphoma Burkitt’s lymphoma Gallbladder cancer Lymphadenopathy Case report

Improvement of regional cerebral blood flow after oral intake of ranched-chain amino acids in patients with cirrhosis

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World Journal of Gastroenterology 2005年第43期11卷 6792-6799页

作者： Mika Yamamoto Motoh Iwasa Kaname Matsumura yuri Nakagawa Naoki Fujita Yoshinao Kobayashi Masahiko Kaito Kan Takeda Yukihiko Adachi Department of Internal Medicine Department of Radiology

AIM： To evaluate the effect of oral intake of branchedchain amino acids （BCAA） on brain perfusion in patients with liver cirrhosis. METHODS： Single photon emission computed tomography scans were performed in 43 patients with cirrhosis and in 15 age-matched healthy subjects. Twenty-nine out of forty-three patients were randomly treated with either BCAA granules or placebo, and single photon emission computed tomography was performed before and after the treatment. We measured the regional cerebral blood flow values using a threedimensional stereotaxic region of interest template. RESULTS： Cirrhotic patients had regions of significant hypoperfusion in the bilateral central （right P = 0.039, P〈0.05; left P = 0.006 P〈0.01）, parietal （right P = 0.028, P〈0.05; left P = 0.009, P〈0.01）, angular （right P = 0.039, P〈0.05; left P = 0.008, P〈0.01）, and left pericallosal segments （P = 0.038 P〈0.05） as compared with healthy subjects. A significant increase in cerebral perfusion was observed 70 min after the oral intake of BCAA in the angular （right P = 0.012, P〈0.05; left P = 0.049, P〈0.05）, temporal （right P = 0.012, P〈0.05; left P=0.038, P〈0.05）, pericallosal segments （right P = 0.025, P〈0.05; left P = 0.049, P〈0.05） and left precentral （P = 0.044, P〈0.05）, parietal （P = 0.040, P〈0.05） and thalamus （P = 0.033, P〈0.05）. No significant change in perfusion was observed in the placebo group. CONCLUSION： Administration of BCAA rapidly improves cerebral perfusion.

关键词： Liver cirrhosis Cerebral blood flow Branchedchain amino acids

Clinical utility of the platelet-lymphocyte ratio as a predictor of postoperative complications after radical gastrectomy for clinical T2-4 gastric cancer

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World Journal of Gastroenterology 2017年第14期23卷 2519-2526页

作者： Kenichi Inaoka Mitsuro Kanda Hiroaki Uda yuri Tanaka Chie Tanaka Daisuke Kobayashi Hideki Takami Naoki Iwata Masamichi Hayashi Yukiko Niwa Suguru Yamada Tsutomu Fujii Hiroyuki Sugimoto Kenta Murotani Michitaka Fujiwara Yasuhiro Kodera Department of Gastroenterological Surgery (Surgery II) Nagoya University Graduate School of Medicine Division of Biostatistics Clinical Research Center Aichi Medical University Hospital

AIMTo identify simple and sensitive markers for postoperative complications after gastrectomy, the predictive values were compared among candidate preoperative ***-hundred and twelve patients with previously untreated clinical T2-4 gastric cancer who underwent a D2 standard gastrectomy (distal gastrectomy or total gastrectomy) were included in the analysis. Correlations between 21 parameters that can be determined by preoperative routine blood tests and clinically relevant postoperative complications (grade II or higher according to the Clavien-Dindo classification) were evaluated. The optimal cutoff values and clinical significance of the selected markers were further evaluated by subgroup analyses according to age, body mass index, operative procedure and clinical disease ***-six patients (21.1%) experienced grade II or higher postoperative complications. The platelet-lymphocyte ratio (PLR, total lymphocyte count/platelet count × 100) exhibited the highest area under the curve value (0.639) for predicting postoperative complications among the 21 parameters, and the optimal cutoff value was determined to be 0.71 (sensitivity = 70%, specificity = 56%). In the univariate analysis, the odds ratio of a low PLR for the occurrence of postoperative complications was 2.94 (95%CI: 1.66-5.35, P variate binomial logistic analysis involving other potential risk factors identified a low PLR as an independent risk factor for postoperative complications (OR = 3.32, 95%CI: 1.82-6.25, P ve procedure and clinical disease stage, the low PLR group exhibited an increased incidence of postoperative *** preoperative PLR is a simple and useful predictor of complications after curative gastrectomy in patients with clinical T2-4 gastric cancer.

关键词： Gastric cancer Gastrectomy Platelet-lymphocyte ratio Postoperative complication Prediction

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空气-等离子镀覆技术的进展

热处理 2014年第1期29卷 8-14页

作者： В.Я.Фролов Г.К.Петров Б.А.Юшин Д.В.Иванов СПбГПУ г.Санкт-Петербург

空气-等离子喷涂工艺在许多领域得到了应用。近年来,国立圣彼得堡综合技术大学在等离子体发生器的创建和涂覆工艺方面进行了研究,业已研制成多种涂层,既可用于新制零件的防护,也可用于磨损件的修复。国立圣彼得堡综合技术大学和雷波尼茨... 详细信息

空气-等离子喷涂工艺在许多领域得到了应用。近年来,国立圣彼得堡综合技术大学在等离子体发生器的创建和涂覆工艺方面进行了研究,业已研制成多种涂层,既可用于新制零件的防护,也可用于磨损件的修复。国立圣彼得堡综合技术大学和雷波尼茨(INP Greifswald)等离子体及工艺研究院联合进行的理论和试验研究,可显著减少研发等离子体发生器和空气-等离子涂覆工艺的试验工作量。

关键词：空气-电弧涂覆电弧等离子体发生器耐磨涂层修复涂层耐蚀涂层绝热涂层绝缘涂层保护-装饰涂层