optimization of anti-rh d immunoglobulin stability in the lyophilization processes
نویسندگان
چکیده
objective anti-rh d igg is used for the prevention of anti-d antibody production in rh- individuals who have been exposed to rh+ red blood cells. the stability of igg preparations as a solution is low, with a shelf life of a year or more. formulation of anti-rh d igg as a lyophilized preparation would decrease its degradation rate and increases its shelf life. the objective of this study was to formulate the anti-rh d as a lyophilized preparation using different formulations and optimize the lyophilization processes. materials and methods the effect of various formulations on the stability of anti-rh d was evaluated using accelerated stability test. in this method the amount of transmittance (t %) at 585 nm for the lyophilized preparations had inverse relationship with aggregation of anti-rh d. to improve stability, the most stable formulation was selected and different concentrations of sucrose in the presence of sodium-potassium phosphate buffer 25 mm ph 7.5. then, the bioactivity was determined, using the elat test and also, the amount of moisture measured in this formulation. results among different formulations, the one with anti-rh d 5 mg/ml, tween 80 0.1%, glycine 0.15 m, manitol 7% and sucrose 60 mm in sodium-potassium phosphate buffer 25 mm ph 7.5 was the most stable formulation (p<0.05). the result of biological test of elat showed that bioactivity of more than 93% meets the requirement set by british pharmacopoeia. the amount of moisture measured in this formulation was less than 3%. conclusion it was concluded that this formulation could be introduced as a candidate for the formulation of anti-rh d in a lyophilized dosage form.
منابع مشابه
Optimization of Anti-Rh D Immunoglobulin Stability in the Lyophilization Processes
Objective Anti-Rh D IgG is used for the prevention of anti-D antibody production in Rh- individuals who have been exposed to Rh+ red blood cells. The stability of IgG preparations as a solution is low, with a shelf life of a year or more. Formulation of anti-Rh D IgG as a lyophilized preparation would decrease its degradation rate and increases its shelf life. The objective of this study was t...
متن کاملFingolimod SLNs: Preparation, in vitro evaluation and Optimization of lyophilization using D-Optimal Experimental Design
Abstract Multiple Sclerosis (MS) is one of the most common neurological disorders diagnosed in young adults. there are no current cures for the disease or its underlying causes, some drugs have been developed that can decrease or delay disease progression. Fingolimod is an immunomodulating drug, mostly used for treating multiple sclerosis (MS). It approximately halves the rate of relapse ...
متن کاملthe effect of the record infancy in crimilly acts of guilties (in karaj city)
چکیده یکی از مهمترین دغدغه های بزرگ جوامع بشری، از دیر باز تا کنون که ذهن پژوهشگران و متخصصان بهداشت روانی و اجتماعی و دولتها رابه خود مشغول داشته، مسأله ی بزهکاری می باشد. شناخت کامل پدیده ی بزهکاری و بزهکار، علل وعوامل سقوط یک انسان، چگونگی درمان وی و درنهایت پیشگیری ازبزهکاری ودریک کلام سالم سازی یک جامعه، رسالت عظیم، انسانی ومقدسی می باشد که با بررسی شخصیت مجرم یعنی[ انسانی که تحت شرای...
15 صفحه اولRh immunization following incompatible blood transfusion and a possible long-term complication of anti-D immunoglobulin therapy.
Anti-D immunoglobulin is now widely used to prevent Rh-negative mothers from being sensitized by Rh-positive fetal erythrocytes. The administration of anti-D following the transfusion of large amounts of Rh-positive erythrocytes into Rh-negative individuals has been less uniformly successful in preventing primary immunization (Bowman and Chown, 1968), and occasional mild (Woodrow et al, 1968) o...
متن کاملromantic education:reading william wordsworths the prelude in the light of the history of ideas
عصر روشنگری زمان شکل گیری ایده های مدرن تربیتی- آموزشی بود اما تاکید بیش از اندازه ی دوشاخه مهم فلسفی زمان یعنی عقل گرایی و حس گرایی بر دقت و وضوح، انسان عصر روشنگری را نسبت به دیگر تواناییهایش نابینا کرده و موجب به وجود آمدن افرادی تک بعدی شد که افتخارعقلانیتشان، تاکید شان بر تجربه فردی، به مبارزه طلبیدن منطق نیاکانشان وافسون زدایی شان از دنیا وتمام آنچه با حواس پنجگانه قابل درک نبوده و یا در ...
منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
iranian journal of basic medical sciencesجلد ۱۱، شماره ۱، صفحات ۵۵-۶۱
کلمات کلیدی
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023