نتایج جستجو برای: cell membrane stability

تعداد نتایج: 2182727  

Journal: :iranian biomedical journal 0
داریوش شهبازی گهرویی daryoush shahbazi-gahrouei مریم روفه mariam roufeh محمد باقر توکلی mohammad bagher tavakoli

background: the monoclonal antibody, c595, against breast cancer cell line was conjugated with cyclic anhydride gadolinium-diethylenetriaminepenta-acetic acid (gd-cdtpaa) to produce gd-dtpa-c595 and used as specific breast cancer cell line (mcf-7) contrast agents in magnetic resonance imaging (mri).  methods: after incubation of breast cancer cell line (mcf-7), with different contrast agents (g...

ژورنال: علوم آب و خاک 2005
عنایت‌ا... تفضلی, , مختار حیدری, ,

One of the main criteria for salt tolerance is cell membrane stability under stress. Reactive oxygen species (ROS), activity of lipoxygenase (Lox) and lipid peroxidation are considered to be destructive to cell membrane under salt stress. In this study, the effects of 0, 75 and 150 mM NaCI, over a period of 14 days on the activity of lipoxygenease, the amount of hydrogen peroxide (H2O2) and mal...

Ali Babaei, Attiyeh Vasaghi Mojtaba Habibagahi Tahereh Talaei-Khozani, Zahra Vojdani

Objective(s): Umbilical cord blood is a good source of the mesenchymal stem cells that can be banked, expanded and used in regenerative medicine.  The objective of this study was to test whether amniotic membrane extract, as a rich source of growth factors such as basic-fibroblast growth factor, can promote the proliferation potential of the umbilical cord mesenchymal stem cells. Materials and ...

Journal: :Journal of electrochemical science and technology 2022

In this study, the stability of an anion exchange membrane water electrolyzer (AEMWE) cell was evaluated in on-off cycling operation with respect to applied electric bias, i.e., a current density 500 mA cm−2, and open circuit. The ohmic polarization resistances system were monitored during (~800 h) using electrochemical impedance spectra. Specific consideration given resistance cell, especially...

صادقی لویه, علی,

During the last five years the recognition of ionic channels in the parietal cells of stomach and acid chloride mechanisms of secretion by these cells has become totally clear by the "Patch Oamp" technique. The apical cytoplasm in the oxyntic cells are in the form of vesicles where membranes contain H+, K+ -ATPase pump. Stimulation causes fusion of these tubular vesicles with the cell membran o...

Introduction: Scaffold has therole of the extracellular matrix in regulating cell survival and it is an important component in tissue engineering techniques. One of the scaffolds that was used in this field, was PLLA (poly L-lactic acid) which was usually prepared by electro spinning method. The purpose of this study was to evaluate the biocompatibility of nano-porous PLLA membrane on prolifera...

Journal: :iranian journal of basic medical sciences 0
mohammad reza haeri department of clinical biochemistry, school of medicine, qom university of medical sciences, qom, iran institute for health research and policy, london metropolitan university, london, united kingdom kenneth white institute for health research and policy, london metropolitan university, london, united kingdom mohammad qharebeglou islamic azad university, qom branch, qom-iran malek moein ansar department of clinical biochemistry, school of medicine, guilan university of medical sciences, rasht, iran

objective(s):isoprenoid biosynthesis is a key metabolic pathway to produce a wide variety of biomolecules such as cholesterol and carotenoids, which target cell membranes. on the other hand, it has been reported that statins known as inhibitors of isoprenoid biosynthesis and cholesterol lowering agents, may have a direct antimicrobial effect on the some bacteria. the exact action of statins in ...

   In this study, effect of asymmetric functionalized graphene oxide (Janus GO) on Young′s modulus and glass transition temperature of Polysulfone (PSf) ultrafiltration membranes was investigated. The membranes were prepared via phase inversion method and GO nanosheets were dispersed in casting solution by sonication. Results showed that the Normalized Young’s modulus (on the basis of neat ...

Journal: :American journal of physiology. Renal physiology 2006
Doris Joy D Espiritu Angelito A Bernardo Jose A L Arruda

Sodium bicarbonate cotransporter 1 (NBC1) mediates 80% of bicarbonate reabsorption by the kidney, but the molecular determinants for activity, targeting, and cell membrane stability are poorly understood. We generated truncation mutants involving the entire NH(2) (DeltaN424) or the entire COOH (DeltaC92) terminus and examined the effects of these truncations on targeting, cell membrane stabilit...

E Saghaei M Minaiyan N Tavakoli

Introduction: Anal fissures are small tears in the lining skin of the anus presenting with typical symptoms of pain and bleeding during defecation. Several new forms of medicines such as glyceryle trinitrate (GTN) ointments and diltiazem, a calcium channel-blocking agent, have been recently used for the treatment of these fissures. Diltiazem relaxes the muscle of anal sphincter and consequently...

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