نظرة عامة: تُعرَّف المادة أو العامل الذي يمكن أن يؤثر على الحمض النووي أو الكروموسومات على أنه سم جيني. قد يؤدي تلف الحمض النووي في الخلية الجسدية إلى حدوث طفرة جسدية ، والتي قد تحفز التحول الخبيث ، في حين أن الضرر الذي يلحق بالخلية الجرثومية قد يؤدي إلى تغيير خاصية وراثية (طفرة في السلالة الجرثومية) (سرطان). أحد الأحماض الدهنية الأحادية غير المشبعة الأحادية غير الأساسية هو حمض البالميتوليك. بعد حمض الأوليك وحمض البالمتيك ، يُصنف حاليًا من بين الأحماض الدهنية الحرة غير المشبعة في دم الإنسان. مع تأثير مضاد للالتهابات ومضاد للسمنة ومضاد لمرض السكر الهدف: تقييم التأثير الوقائي المحتمل لأوميغا 7 ضد السمية الجينية التي يسببها الميثوتريكسات. الطريقة: تم تقسيم جميع الفئران السبعين بالتساوي إلى مجموعتين من كل مجموعة تم تكوين خمس مجموعات فرعية. كانت كل مجموعة بها سبعة فئران على النحو التالي المجموعة الأولى: أعطيت البارافين السائل عن طريق الفم لمدة سبعة أيام متتالية المجموعة الثانية: أعطيت البارافين السائل عن طريق الفم لمدة سبعة أيام متتالية ثم في اليوم الثامن ، تم إعطاء جرعة واحدة داخل الصفاق من الميثوتريكسات (20 مجم / كجم). المجموعة الثالثة: أعطيت أوميغا 7 (50 مجم / كجم) عن طريق الفم لمدة سبعة أيام متتالية ثم في اليوم الثامن ، تم إعطاء جرعة واحدة داخل الصفاق من الميثوتريكسات (20 مجم / كجم). المجموعة الرابعة: أعطيت أوميغا 7 (100 مجم / كجم) عن طريق الفم لمدة سبعة أيام متتالية ثم في اليوم الثامن ، تم إعطاء جرعة واحدة داخل الصفاق من الميثوتريكسات (20 مجم / كجم). المجموعةV تعطى أوميغا 7 عن طريق الفم لمدة سبعة أيام بجرعة 100 مجم / كجم: النتائج: عند مقارنتها بفئران المجموعة الأولى الضابطة ، ساهمت المجموعة الثانية في انخفاض كبير (P <0.05) في مؤشر الانقسام الفتيلي ، بالإضافة إلى ارتفاع أسي في مظهر النواة الدقيقة وإجمالي الانحرافات الصبغية ؛ ومع ذلك ، قللت المجموعتان الرابعة والخامسة من انحراف الكروموسومات ، وظهور النواة الصغيرة ، وارتفاع مؤشر الانقسام. مقارنة بفئران المجموعة الثانية المعالجة بالميثوتريكسات. الخلاصة: من المعروف أن الميثوتريكسات يسبب تأثيرات سامة للجينات ، وقد ثبت أن أوميغا 7 لها دور وقائي ضد ذلك. المصطلحات: ميثوتريكسات ، أوميغا 7 ، انحراف الكروموسومات ، مظهر النواة الصغيرة ، مؤشر الانقسام
Spinach, Spinacia oleracea L is a popular vegetable belonging to the family Chenopodiaceae. This study was concerned with extraction of compounds in Iraqi spinach leaves, preliminary phytochemical evaluation, identification of two biological important flavonols, quercetin and kaempferol in spinach leaves and evaluation of the protective effect of aqueous spinach extract on methotrexate (MTX) induced hepatotoxicity in rats. The percentage yield of extraction procedure, identification of spinach by chemical tests and identification of flavonols by thin layer chromatography (TLC) and High performance liquid chromatography (HPLC) were fully described in this study. The results indicate that the percentage of quarce
... Show MoreBackground: Diabetes is a metabolic disorder characterized by chronic hyperglycemia due to an inability to produce insulin. Uncontrolled or poorly controlled diabetes is clinically associated with increased susceptibility to delay healing. Many recent researches have shown that stem cell therapy can be the best choice for treatment of this disease. The aims of this research were investigating regeneration of pancreatic beta cells of diabetic induced rabbits after stem cell transplantation. Materials and Methods: 64 rabbits weighting an average of (2.5 - 3 kg) were used in this experimental study, and divided into 4 groups as follows; group A ( contains 16 healthy rabbits regarded as control group ) , Group B ( contains 16 diabetic rabbits
... Show MoreDrug-induced acute kidney injury is a serious disorder. Oxidative stress has a key role in its initiation and progression. In this study, the possible ameliorative effect of fimasartan against methotrexate-induced nephrotoxicity was investigated in comparison with α-tocopherol in rats. Wistar rats were allocated into six groups and treated as follows: group Ӏ received water on a daily basis for 8 successive days; group ӀӀ received methotrexate (20 mg/kg) on day 1, followed by water for 7 successive days; group ӀӀӀ received fimasartan (3 mg/kg/day) for 7 successive days; group IV received α-tocopherol (1 g/kg/day) for 7 successive days; group V re
... Show MoreMyelosuppression is one of the serious adverse effects of cancer chemotherapy that lead to life threatening febrile neutropenia and considered a limiting factor for successful therapy. Cyclophosphamide a widely used anticancer drugs, induces severe bone marrow suppression by damaging hematopoietic stem cells. As cancer incidence expands globally, the demand for an effective myeloprotective therapy during cancer treatment is also increasing.Nigella sativa seed oil, a well-known plant extract that widely used for various health conditions. This study aims to evaluate the myeloprotective activity of Nigella sativa seed oil in cyclophosphamide-induced myelosuppression mice model. Myelosuppression induced by single intraperitoneal injection o
... Show MoreDrug –induced nephrotoxicity is an important cause of renal failure. Aminoglycoside antibiotics, such as amikacin, which causes ototoxicity and nephrtotoxicity as a main side effects, this is focused on the use of natural materials as antioxidants against the toxic oxidative action that exert a cell damaging effect. The most important one of these materials is the honey. The aim of this work is to evaluate the antioxidant effects of honey against amikacin – induced nephrotoxicity.18 albino rats divided into 3 groups (6 rats per each group), group 1 received I.P daily dose of normal saline (control), group 2 received (35 mg/kg/day) I.P dose of amikacin ,and group 3 received (35mg/kg/day) of amikacin I.P dose in combina
... Show MoreThe protective effect of benfotiamine against doxorubicin-induced cardiotoxicity was evaluated in rabbits. Pretreatment of rabbits with 70mg/kg benfotiamine orally 7 days before induction of cardiotoxicity with I.V 15mg/kg doxorubicin. injection resulted in significant reduction of the activities of lactate dehydrogenase and creatine phosphokinase enzyme in the serum compared to doxorubicin treated animals; benfotiamine also improves the histological changes produced by doxorubicin in the cardiac muscle compared to control. In conclusion, benfotiamine when used concomitantly with doxorubicin protects the myocardium against the cardiotoxicity induced by this cytotoxic drug.
Asthma is a chronic respiratory disorder in which immunological and structural cells play a role. The limits of conventional medicines necessitate the development of innovative therapeutic techniques for asthma. In the present study, we investigated the possible protective effect of cinnamic acid (CA) on ovalbumin-induced asthma in a mouse model. Sixty albino male mice BALB/c type weighing (20-30) grams were chosen at random and divided into five groups each one contains 12 animal: Group I: PBS/liquid paraffin control. Group II: asthma model group. Group III: cinnamic acid control group; mice received cinnamic acid (50 mg/kg) in liquid paraffin orally by gavage. Group IV: asthma model / group of (25 mg / kg) cinnamic acid; mice received
... Show MoreMethotrexate (MTX) was used for treatment of malignancies and now is widely used in treatment of rheumatoid arthritis. In this research the evaluation of the effects of MTX on some liver enzymes and lipid profile was studied. Twenty four adult female mice divided into three groups (8 mice each). The first two groups were treated with MTX while the third group was used as a control. MTX was intraperitoneally given at 50 µg/ml and 75 µg/ml to the first and second groups respectively for 35 days ,whereas the control group was intraperitoneally injected with normal saline. The results showed a significant (p<0.05) increase in serum levels of glutamic oxaloacetate transaminase (GOT) , glutamic pyruric transaminase (GPT), Alkaline pho
... Show More