Muscle tissue

This study was conducted to evaluate the digestibility of different dietary lipid sources in the diet of common carp, and to determine how the PUFA composition of plant oils affects the growth, feed utilization, and tissue FA composition of fish fed these plant-derived oils.

14p vibecca 01-10-2024 3 2   Download

Chapter 9 - Muscles and muscle tissue (part a) provides knowledge of muscle tissues and skeletal muscle. The following will be discussed in this chapter: Types of muscle tissue, special characteristics of muscle tissue, muscle functions, gross anatomy of a skeletal muscle, microscopic anatomy of a skeletal muscle fiber, sliding filament model of contraction, physiology of skeletal muscle fibers,...

65p tangtuy07 02-04-2016 59 3   Download

This chapter presents the following content: Gross anatomy of a skeletal muscle, microscopic anatomy of a skeletal muscle fiber, sliding filament model of contraction, physiology of skeletal muscle fibers, contraction of a skeletal muscle, muscle metabolism, force of muscle contraction, velocity and duration of contraction, adaptations to exercise.

42p tangtuy07 02-04-2016 54 3   Download

The main contents of this chapter include all of the following: Force of muscle contraction, avelocity and duration of contraction, muscle fiber type, effects of exercise, effects of resistance exercise, the overload principle, smooth muscle, peristalsis, microscopic structure, innervation of smooth muscle,...and other contents.

47p tangtuy07 02-04-2016 40 4   Download

Các tế bào động vật là tế bào eukaryote, chúng được liên kết với nhau bởi các nguyên liệu gian bào để tạo thành mô. Mô động vật thường được phân chia theo bốn nhóm: biểu mô (epithelium), mô liên kết (connective tissue), mô cơ (muscle) và mô thần kinh (nerve). Biểu mô tạo thành lớp phủ và lớp lót trên các bề mặt tự do của cơ thể, cả bên trong và bên ngoài.

4p butmaulam 23-09-2013 180 12   Download

The transcription factor serum response factor (SRF) regulates expression of growth factor-dependent genes and muscle-specific genes in vertebrates. Homologous factors regulate differentiation of some ectodermic tissues in invertebrates. To explore the molecular basis of these different physiological functions, the functionality of human, Drosophila melanogaster and Artemia franciscana SRFs in mammalian cells has been compared in this article. D. melanogaster and, to a lesser extend, A.

9p system191 01-06-2013 32 5   Download

Liver metabolism is influenced by hormones and nutrients. Amino acids such as glutamine or leucine induce an anabolic response, which resembles that of insulin in muscle and adipose tissue. In this work, the signalling pathways and the effects of insulin were compared to those of glutamine and leucine in isolated hepatocytes from normal and streptozotocin-diabetic rats.

9p system191 01-06-2013 46 5   Download

Aralar1 and citrin are members of the subfamily of calciumbinding mitochondrial carriers and correspond to two isoforms of the mitochondrial aspartate/glutamate carrier (AGC). These proteins are activated by Ca2+ acting on the external side of the inner mitochondrial membrane. Although it is known that aralar1 is expressed mainly in skeletal muscle, heart and brain, whereas citrin is present in liver, kidney and heart, the precise tissue distribution of the two proteins in embryonic and adult tissues is largely unknown....

8p system191 01-06-2013 34 4   Download

Mitochondrial DNA (mtDNA) deletion mutations accumulate with age in tissues of a variety of species. Although the relatively low calculated abundance of these deletion mutations in whole tissue homogenates led some investigators to suggest that these mutations do not have any physiological impact, their focal and segmental accumulation suggests that they can, and do, accumulate to levels sufficient to affect the metabolism of a tissue.

6p research12 01-06-2013 23 4   Download

The uncoupling proteins (UCPs) are thought to uncouple oxidative phosphorylation in the mitochondria and thus generate heat. One of the UCP isoforms, UCP3, is abun-dantly expressed in skeletal muscle, the major thermogenic tissue in humans. UCP3 has been overexpressed at high levels inyeast systems,where it leads to theuncouplingof cell respiration, suggesting that UCP3may indeed be capable of dissipating the mitochondrial proton gradient.

9p research12 29-04-2013 37 3   Download

Activation of a calcium-sensing receptor (Ca-SR) leads to increased intracellular calcium concentration and altered cellular activities. The expression of Ca-SR has been iden-tified in both nonexcitable and excitable cells, including neurons and smooth muscle cells. Whether Ca-SR was expressed and functioning in cardiac myocytes remained unclear. In the present study, the transcripts of Ca-SR were identified in rat heart tissues usingRT-PCRthat was further confirmed by sequence analysis.

9p fptmusic 16-04-2013 48 2   Download

A naturally occurring variant of the human androgen receptor (AR) named AR45 has been identified. It lacks the entire region encoded by exon 1 of the ARgene and is composed of the AR DNA-binding domain, hinge region and ligand-binding domain, preceded by a novel seven amino-acid long N-terminal extension. A survey of human tissues revealed that AR45 was expressed mainly in heart and skeletal muscle. In cotransfection experiments, AR45 inhibited AR function, an effect necessitating intact DNA- and ligand-binding properties. ...

11p awards 05-04-2013 40 4   Download

Connective tissue growth factor (CTGF/CCN2) is an immediate early gene-encoded polypeptide modulating cell growth and collagen synthesis. The importance of CTGF/ CCN2 function is highlighted by its disregulation in fibrotic disorders. In this study, we investigated the regulation and signaling pathways that are required for various stimuli of intracellular signaling events to induce the expression of the endogenous CTGF/CCN2gene in smooth muscle cells.

15p awards 05-04-2013 44 3   Download

The lipolysis stimulated receptor (LSR) recognizes apo-lipoprotein B/E-containing lipoproteins in the presence of free fattyacids, and is thought tobe involved in the clearance of triglyceride-rich lipoproteins (TRL). The distribution of LSR in mice was studied by Northern blots, quantitative PCR and immunofluorescence. In the adult,LSRmRNA was detectable in all tissues tested except muscle and heart, and was abundant in liver, lung, intestine, kidney, ovaries and testes. During embryogenesis, LSR mRNA was detectable at 7.

12p awards 05-04-2013 43 4   Download

Calpains are intracellular Ca 2+ -regulated cysteine pro-teases which mediate regulatory cleavage of specific substrates. They cover a broad range of physiological functions including proteolysis of molecules involved in cytoskeletal organization, the cell cycle, signal trans-duction, apoptosis, and protein renewal during growth and tissue regeneration. Originally found in mamma-lian skeletal muscle then in numerous organisms inclu-ding protists and plants, their expression is ubiquitous [1,2].

2p inspiron33 25-03-2013 41 4   Download

Calpain 3 is a 94-kDa calcium-dependent cysteine protease mainly expressed in skeletal muscle. In this tissue, it localizes at several regions of the sarcomere through binding to the giant protein, titin. Loss-of-function mutations in the calpain 3 gene have been associated with limb-girdle mus-cular dystrophy type 2A (LGMD2A),

10p inspiron33 25-03-2013 34 4   Download

Basement membranes are sheets of extracellular matrix that separate epi-thelia from connective tissues and outline muscle fibers and the endothelial lining of blood vessels. A major function of basement membranes is to establish and maintain stable tissue borders, exemplified by frequent vascu-lar breaks and a disrupted pial and retinal surface in mice with mutations or deletions of basement membrane proteins.

12p galaxyss3 19-03-2013 34 2   Download

Several isoforms of the cAMP-dependent protein kinase catalytic subunit (C-subunit) were separated from the posterior adductor muscle and the mantle tissues of the sea mussel Mytilus galloprovincialisby cation exchange chromatography, and identified by: (a) protein kinase activity; (b) antibody recognition;

11p galaxyss3 07-03-2013 43 5   Download

In vertebrates, phosphocreatine and ATP are continuously interconverted by the reversible reaction of creatine kinase in accordance with cellular energy needs. Sarcoma tissue and its normal counterpart, creatine-rich skel-etal muscle, are good source materials to study the status of creatine and creatine kinase with the progression of malignancy.

12p galaxyss3 07-03-2013 41 3   Download

Mô cơ là một tổ chức chuyên hoá thích ứng với sự vận động của cơ thể nhờ khả năng co dãn của chúng. Trong cơ thể có ba loại cơ: Cơ trơn: co dãn chậm, đều, ít mệt mỏi. Cơ vân: co dãn nhanh, mạnh, nhưng chóng mệt mỏi. Cơ tim: co dãn mạnh, liên tục nhưng không mệt mỏi. Nghiên cứu chi tiết về cấu tạo từng loại cơ sẽ cho thấy sự sai khác giữa chúng và điều đó giải thích sự khác nhau trong tính chất vận động của mỗi loại....

10p 124357689 05-06-2012 213 35   Download