نتایج جستجو برای: ascorbic acid

تعداد نتایج: 747581  

Journal: :international journal of reproductive biomedicine 0
hamed fanaei samira khayat iman halvaei vahid ramezani yaser azizi amir kasaeian

background: oxidative stress in teratozoospermic semen samples caused poor assisted reproductive techniques (art) outcomes. among antioxidants, ascorbic acid is a naturally occurring free radical scavenger and as such its presence assists various other mechanisms in decreasing numerous disruptive free radical processes. objective: the main goal of this study was to evaluate potential protective...

Journal: :تولید گیاهان زراعی 0
صفیه عرب دانشگاه صنعتی شاهرود مهدی برادران فیروز آبادی دانشگاه صنعتی شاهرود حمیدرضا اصغری دانشگاه صنعتی شاهرود احمد غلامی عضو هیات علمی مهدی رحیمی عضو هیات علمی

abstractbackground and purpose nowadays, the application of antioxidants and plant growth regulators has discussed for decreasing the negative effect of different stresses. ascorbic acid and sodium nitroprusside have substance caused witch the resistance to biotic and abiotic stresses. to evaluate the effect of ascorbic acid and sodium nitroprusside foliar application on some traits of safflowe...

Journal: :iranian red crescent medical journal 0
hatice topal department of pediatrics, mugla sıtkı kocman university, faculty of medicine, mugla, turkey yaşar topal department of pediatrics, mugla sıtkı kocman university, faculty of medicine, mugla, turkey; department of pediatrics, mugla sıtkı kocman university, faculty of medicine, mugla, turkey. tel: +90-2522114826

methemoglobinemia is a disorder characterized by the presence of a higher than normal level of methemoglobin. prilocaine which is one of the oxidizing local anaesthetics is widely used in many local procedures. the first choice of treatment of complications due to the use of these local anaesthetics is methylene blue, while ascorbic acid is the alternative choice. the side effects of metilen bl...

Journal: :anesthesiology and pain medicine 0
fatemeh zeraati department of pharmacology, hamedan university of medical sciences, hamedan, iran; department of pharmacology, hamedan university of medical sciences, hamedan, iran. tel: +98-9183122063, fax: +98-8118226035 malihe araghchian department of pharmacology, hamedan university of medical sciences, hamedan, iran mohammad hadi farjoo department of pharmacology, hamedan university of medical sciences, hamedan, iran

background combining different analgesic drugs for improvement of drug efficacy is a recommended strategy intended to achieve the optimal therapeutic effects. objectives the purpose of the present study was to assess the nature of the interaction between ascorbic acid and two analgesic drugs, morphine and tramadol. materials and methods the analgesic activity was assessed by the acetic acid wri...

Introduction: The concentration and action of ascorbic acid in the central nervous system as a vitamin and also a neuromodulator have exercise-induced fluctuations. The present study was conducted to evaluate the effects of anaerobic exercise alone and associated with the consumption of ascorbic acid as a non pharmacological treatment for reducing seizures and increasing seizure thresholds. ...

Journal: :journal of plant physiology & breeding 2015
soheila mohammadrezakhani zahra pakkish

abstract this experiment was carried out to determine the effects of proline and ascorbic acid on chilling injury, electrolyte leakage, lipid peroxidation, peroxide hydrogen and antioxidant enzymes activity of thompson grape (vitis vinifera l.) fruit. grape fruits were treated by 0 (control), 250 and 500 µm proline and 0 (control), 2 and 4% ascorbic acid and their combinations, then stored at 1...

Journal: :international journal of advanced biological and biomedical research 2014
shahriar saeidian

objective: polyphenol oxidase or ppo (ec 1.14.18.1) is considered the enzyme responsible for quality deterioration and browning in different fruits during postharvest period. the objective of this study was to evaluate the antibrowning (inhibition of polyphenol oxidase activity) effect of cysteine, ascorbic acid, citric acid, kojic acid and glycine at two different ph (6 and 7) in  hawthorn. me...

اسماعیلی ماهانی, سعید, بدره, فیروزه, سالاری, سحر, عباس‌نژاد, مهدی,

Background: Ascorbic acid (AA) is not synthesized in the brain but it is actively transported through blood-brain barrier by SVCT2 cotransporter and it is stored in high concentrations with heterogeneous distribution in areas such as nucleus accumbens shell (AcbSh) in the mammalian brain. Previous studies have shown that Ascorbic acid injection into AcbSh decreases feeding therefore, in the pre...

Journal: :physiology and pharmacology 0
mehdi abbasnejad dept. biology, shahid bahonar university of kerman, kerman, iran sima nasri habib nazem mehri bahaaddini

introduction: ascorbic acid (aa) acts as an antioxidant in the central nervous system (cns) of the mammalians. it is released from the some nerve ending together with neurotransmitters. the results have shown that ascorbic acid could affect learning as well as memory. in this study, we examined the effect of icv injection of ascorbic acid on learning and memory by morris water maze. method: in ...

In this study, a new reaction system for quantitative determination of ascorbic acid was introduced. The developed method is based on inhibitory effect of ascorbic acid on the Orange G-bromate system. The change in absorbance was followed spectrophotometrically at 478 nm. The dependence of sensitivity on the reaction variables including reagents concentration, temperature and time was investiga...

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