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Diagnosis and therapeutic strategies for small bowel vascular lesions

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World Journal of Gastroenterology 2019年第22期25卷 2720-2733页

作者： Eiji Sakai Ken Ohata Atsushi Nakajima Nobuyuki Matsuhashi Department of Gastroenterology NTT Medical Center TokyoTokyo 141-8625Japan Division of Gastroenterology and Hepatology Yokohama City University School of MedicineYokohama 236-0004Japan

Small bowel vascular lesions, including angioectasia (AE), Dieulafoy’s lesion (DL) and arteriovenous malformation (AVM), are the most common causes of obscure gastrointestinal bleeding. Since AE are considered to be venous lesions, they usually manifest as a chronic, well-compensated condition. Subsequent to video capsule endoscopy, deep enteroscopy can be applied to control active bleeding or to improve anemia necessitating blood transfusion. Despite the initial treatment efficacy of argon plasma coagulation (APC), many patients experience re-bleeding, probably because of recurrent or missed AEs. Pharmacological treatments can be considered for patients who have not responded well to other types of treatment or in whom endoscopy is contraindicated. Meanwhile, a conservative approach with iron supplementation remains an option for patients with mild anemia. DL and AVM are considered to be arterial lesions;therefore, these lesions frequently cause acute life-threatening hemorrhage. Mechanical hemostasis using endoclips is recommended to treat DLs, considering the high re-bleeding rate after primary APC cauterization. Meanwhile, most small bowel AVMs are large and susceptible to re-bleeding therefore, they usually require surgical resection. To achieve optimal diagnostic and therapeutic approaches for each type of small bowel lesion, the differences in their epidemiology, pathology and clinical presentation must be understood.

关键词： Angiodysplasia Angioectasia Dieulafoy's lesion Arteriovenous malformation Obscure gastrointestinal bleeding Video capsule endoscopy Deep enteroscopy Argon plasm coagulation

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Fish germ cells

Science China(Life Sciences) 2010年第4期53卷 435-446页

作者： XU HongYan1, LI MingYou1, GUI JianFang2 & HONG YunHan1,2 1Department of Biological Sciences, National University of Singapore, Singapore 119260, Singapore 2 State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China Department of Biological Sciences National University of Singapore Singapore Singapore State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology Chinese Academy of Sciences Wuhan China

Fish, like many other animals, have two major cell lineages, namely the germline and soma. The germ-soma separation is one of the earliest events of embryonic development. Germ cells can be specifically labeled and isolated for culture and transplan-tation, providing tools for reproduction of endangered species in close relatives, such as surrogate production of trout in salmon. Haploid cell cultures, such as medaka haploid embryonic stem cells have recently been obtained, which are capable of mimicking sperm to produce fertile offspring, upon nuclear being directly transferred into normal eggs. Such fish originated from a mosaic oocyte that had a haploid meiotic nucleus and a transplanted haploid mitotic cell culture nucleus. The first semi-cloned fish is Holly. Here we review the current status and future directions of understanding and manipulating fish germ cells in basic research and reproductive technology.

关键词： fish germ cell germ plasm reproduction reproductive technology semi-cloning

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Advances in Bioscience and Biotechnology 2018年第4期9卷 136-146页

作者： Shenghe Chang Zhengjing Wu Wei Sun Lan Qiao Qi Zeng Jingyi Zhang Haiyan Shu Haikou Experimental Station Chinese Academy of Tropical Agricultural Sciences Haikou China The Key Lab of Hainan Banana Genetics and Breeding Haikou China School of Forestry Henan University of Science and Technology Luoyang China

Banana is an important fruit in China. Banana production played important role in economic development in tropical region. Banana production in China was always cut because of lodging caused by typhoon. Getting new cultivars with high resistance to lodging is the basic resolution to resolve this problem. Screening and identifying the germ plasm resource is the first step to breed new cultivars. Banana plant height was high. A single banana plant needs large area. It is difficult to screen the germ plasm resource by identifying the physical strength of banana pseudostem. This research focused on studying the relationship between pseudostem and plant height, pseudostem diameter, acid soluble lignin, acid insoluble lignin, total lignin, pore numbers of pseudostem cross section, and the expression of 4-coumarate:CoA ligase (4CL). Results showed that the plant with high physical strength in seedling stage always has high physical strength in mature stage. The physical strength of banana seedling pseudostem was closely related to pseudostem diameter and total lignin. Pseudostem diameter and total lignin can be used to predict the physical strength of mature banana pseudostem. Work on identifying and screening the physical strength of banana germ plasm pseudostem can be reduced by measuring seedling pseudostem diameter and total lignin in pseudostem of banana germplasm.

关键词： Banana Germ plasm Resource Lodging Physical Strength of Pseudostem

Quantum Effects on the Rayleigh-Taylor Instability of Viscoelastic plasma Model through a Porous Medium

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Journal of Modern Physics 2011年第10期2卷 1146-1155页

作者： Gamal A. Hoshoudy 不详

The stability of stratified of incompressible, viscoelastic plasma through a porous medium in the presence of the quantum mechanism is considered. The dispersion relation is obtained using the normal mode technique. The behavior of growth rate with respect to the quantum effect, strain retardation time and stress relaxation time are examined in the presence of porosity of the porous medium, the medium permeability, kinematic viscosity. It is shown that, the presence of quantum term stabilizes a certain wave number band, whereas the system is unstable for all wave numbers in the absence of quantum term. The considered parameters beside the quantum term will bring about more stability on the considered system.

关键词： Rayleigh-Taylor Instability Viscoelastic Quantum plasm

A MORPHOLOGICAL STUDY ON THE MEMBRANE STRUCTURE AND THE DISTRIBUTION OF NUCLEAR PORE DURING SPERMIOGENESIS——FREEZE-ETCHING AND DOUBLE REPLICA TECHNIQUE

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Chinese Science Bulletin 1987年第23期32卷 1642-1646页

作者：党连凯 Institute of Biophysics Academia Sinica Beijing

Ⅰ. INTRODUCTION The spermiogenesis means the devdoping process from the spermatid to the sperm. Leblond and Clermont observed 14 steps for spermiogenesis in mouse by PAS staining method; Susi et al. reported how the Golgi complex became the sperm acrosome. Clermont and Rmabourg studied the morphological changes of endoplasmic reticulum by Ur-

关键词： endoplasmic reticulum sperm steps morphological fertilization staining plasm shadow mature

Thyroid and parathyroid gland

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外科研究与新技术 1995年第2期 78-79页

950261 Humoral autoimmunity in endocrine ophthal-mopathy.TANG Zhengyi(汤正义),et al.Shanghai En-docrinol Res Instit,Shanghai 2nd Med Univ,Shang-hai,200025.Chin J Endorinol & Metabol 1994;10(5)151-153.The crude antigens of the cell membrane and cyto-plasm of the thyroid,eye muscles and periobital con-nective tissues and cell membrane crude antigens of theskeletal muscle,and liver were subjected to SDS-PAGE,then immunoblotting with the sera of the pa-

关键词： parathyroid plasm endocrine crude papillary TRAb Shang 邓小戈 muscles osteoporosis

Rheumatic heart disease

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外科研究与新技术 1992年第4期 206-206页

920657 The relationship between atrialnatriuretic factor and hemodynamics inrheumatic mitral stenosis. XU Zhimin(须志敏), et al. Dept Cardiol, Affil Hosp, Shand-ong Med Univ, Jinan. 25000 Chin Cir J1992; 7(3): 247-250.

关键词： mitral stenosis Jinan plasm abnormal