Mehrdad Hashemi
Genetic Department, Islamic Azad University, Tehran Medical Sciences Branch, Tehran, Iran
[ 1 ] - Effect of Cyperus rotundus on ischemia-induced brain damage and memory dysfunction in rats
Objective(s):Global cerebral ischemia-reperfusion injury causes loss of pyramidal cells in CA1 region of hippocampus. In this study, we investigated the possible neuroprotective effects of the ethanol extract of Cyperus rotundus (EECR) on a model of global transient ischemia in rat, by evaluating the pathophysiology of the hippocampal tissue and spatial memory. Materials and Methods: Treatment ...
[ 2 ] - Effect of Pentoxifylline on Ischemia- induced Brain Damage and Spatial Memory Impairment in Rat
Objective(s) The brief interruption of cerebral blood flow causes permanent brain damage and behavioral dysfunction. The hippocampus is highly vulnerable to ischemic insults, particularly the CA1 pyramidal cell layer. There is no effective pharmacological strategy for improving brain tissue damage induced by cerebral ischemia. Previous studies reported that pentoxifylline (PTX) has a neuroprot...
[ 3 ] - Doxorubicin Loaded DNA Aptamer Linked Myristilated Chitosan Nanogel for Targeted Drug Delivery to Prostate Cancer
Recently, specific attention has been paid to aptamers, short DNA or RNA, as a tool for cancer diagnosis and therapy. In the present study MCS nanogels were prepared by Myristate: chitosan at 1:9 ratio and were characterized by several techniques. A selected ssDNA aptamer(Apt) capable of detecting LNCaP cells was linked to Myristilated chitosan nanogels (Apt-MCS) by glutaraldehyde and loaded wi...
[ 4 ] - Analysis of the antiproliferative effects of curcumin and nanocurcumin in MDA-MB231 as a breast cancer cell line
Cancer is one of the main cause of mortality in the world which appears by the effect of enviromental physico-chemical mutagen and carcinogen agents. The identification of new cytotoxic drug with low sid effects on immune system has developed as important area in new studies of immunopharmacology. Curcumin is a natural polyphenol with anti-oxidative, anti-inflammatory and anti-cancer properties...
[ 5 ] - The Comparison of Anticancer Activity of Thymoquinone and Nanothymoquinone on Human Breast Adenocarcinoma
Cancer is one of the main causes of mortality in the world which appears by the effect of enviromental physico-chemical mutagen and carcinogen agents. The identification of new cytotoxic drugs with low side effects on immune system has developed as important area in new studies of immunopharmacology. Thymoquinone (TQ), derived from the medicinal spice Nigella sativa (also called black cumin) ex...
[ 6 ] - Effect of Dexamethasone, Insulin and EGF on the Myogenic Potential on Human Endometrial Stem Cell
Human endometrium contains mesenchymal stem cells (eMSC) which have the ability to differentiate into three cell lineages and the potential in therapeutic applications. We hypothesize that using environmental induction in culture media such as dexamethasone, human recombinant insulin and human epidermal growth factor (hEGF) can differentiate endometrial stem cells into myoblast. These agents ha...
[ 7 ] - The Study of Petoxifylline Drug Effects on Renal Apoptosis and Bcl2 Gene Expression Changes Following Ischemic Reperfusion Injury in Rat
Background & Target: Ischemia Reperfusion injury is the tissue damage caused when blood supply returns to the tissue after a period of ischemia or lack of oxygen. In this study, the effect of pentoxyfylline on bcl2 gene expression changes and cell injury in kidney of rat following Ischemia Reperfusion were evaluated.Methods: In this experimental study, 20 male wistar rats with average weight of...
[ 8 ] - The Effect of Pentoxifylline on bcl-2 Gene Expression Changes in Hippocampus after Ischemia-Reperfusion in Wistar Rats by a Quatitative RT-PCR Method
Ischemia-reperfusion injury is the tissue damage caused when blood supply returns to the tissue after a period of ischemia or lack of oxygen. Ischemia-reperfusion brain injury initiates an inflammatory response involving the expression of adhesion molecules and cytokines. Twenty–four male Wistar rats (250-300 g body wt) were used in this study. The animals were divided into four groups of 6 rat...
[ 9 ] - The Effect of Pentoxifylline on bcl-2 Gene Expression Changes in Hippocampus after Long-term use of Ecstasy in Wistar Rats
3,4- Methylenedioxymethamphetamine (MDMA or "Ecstasy") is a psychoactive and hallucinogenic drug of abuse. MDMA has been shown to produce neurotoxicity both in animals and humans. Recently, the vasodilator drugs such as pentoxifylline is one of the new strategies which have been considered as neuroprotector. In this study effect of pentoxifylline on bcl-2 gene expression changes in hippocampus ...
[ 10 ] - Doxorubicin Loaded DNA Aptamer Linked Myristilated Chitosan Nanogel for Targeted Drug Delivery to Prostate Cancer
Recently, specific attention has been paid to aptamers, short DNA or RNA, as a tool for cancer diagnosis and therapy. In the present study MCS nanogels were prepared by Myristate: chitosan at 1:9 ratio and were characterized by several techniques. A selected ssDNA aptamer(Apt) capable of detecting LNCaP cells was linked to Myristilated chitosan nanogels (Apt-MCS) by glutaraldehyde and loaded wi...
[ 11 ] - Analysis of the antiproliferative effects of curcumin and nanocurcumin in MDA-MB231 as a breast cancer cell line
Cancer is one of the main cause of mortality in the world which appears by the effect of enviromental physico-chemical mutagen and carcinogen agents. The identification of new cytotoxic drug with low sid effects on immune system has developed as important area in new studies of immunopharmacology. Curcumin is a natural polyphenol with anti-oxidative, anti-inflammatory and anti-cancer properties...
[ 12 ] - The Comparison of Anticancer Activity of Thymoquinone and Nanothymoquinone on Human Breast Adenocarcinoma
Cancer is one of the main causes of mortality in the world which appears by the effect of enviromental physico-chemical mutagen and carcinogen agents. The identification of new cytotoxic drugs with low side effects on immune system has developed as important area in new studies of immunopharmacology. Thymoquinone (TQ), derived from the medicinal spice Nigella sativa (also called black cumin) ex...
[ 13 ] - Effect of Dexamethasone, Insulin and EGF on the Myogenic Potential on Human Endometrial Stem Cell
Human endometrium contains mesenchymal stem cells (eMSC) which have the ability to differentiate into three cell lineages and the potential in therapeutic applications. We hypothesize that using environmental induction in culture media such as dexamethasone, human recombinant insulin and human epidermal growth factor (hEGF) can differentiate endometrial stem cells into myoblast. These agents ha...
[ 14 ] - The Study of Petoxifylline Drug Effects on Renal Apoptosis and Bcl2 Gene Expression Changes Following Ischemic Reperfusion Injury in Rat
Background & Target: Ischemia Reperfusion injury is the tissue damage caused when blood supply returns to the tissue after a period of ischemia or lack of oxygen. In this study, the effect of pentoxyfylline on bcl2 gene expression changes and cell injury in kidney of rat following Ischemia Reperfusion were evaluated.Methods: In this experimental study, 20 male wistar rats with average weight of...
[ 15 ] - The Effect of Pentoxifylline on bcl-2 Gene Expression Changes in Hippocampus after Ischemia-Reperfusion in Wistar Rats by a Quatitative RT-PCR Method
Ischemia-reperfusion injury is the tissue damage caused when blood supply returns to the tissue after a period of ischemia or lack of oxygen. Ischemia-reperfusion brain injury initiates an inflammatory response involving the expression of adhesion molecules and cytokines. Twenty–four male Wistar rats (250-300 g body wt) were used in this study. The animals were divided into four groups of 6 rat...
[ 16 ] - The Effect of Pentoxifylline on bcl-2 Gene Expression Changes in Hippocampus after Long-term use of Ecstasy in Wistar Rats
3,4- Methylenedioxymethamphetamine (MDMA or "Ecstasy") is a psychoactive and hallucinogenic drug of abuse. MDMA has been shown to produce neurotoxicity both in animals and humans. Recently, the vasodilator drugs such as pentoxifylline is one of the new strategies which have been considered as neuroprotector. In this study effect of pentoxifylline on bcl-2 gene expression changes in hippocampus ...
[ 17 ] - اثر پنتوکسیفیلین بر روی ضایعات ناشی از مصرف اکستازی در هپاتوسیتهای کبد موش صحرایی
سابقه و هدف: اکستازی جزو خانواده آمفتامینها و یکی از متداولترین داروهای مخدر در جهان است که منجر به بیقراری، اضطراب، توهم، مشکلات قلبی-عروقی و مسمومیت کبدی میگردد. اخیراً استفاده از گشادکننده های عروقی نظیر پنتوکسی فیلین به عنوان حفاظت کننده در برابر ضایعات ناشی از مصرف موادی نظیر الکل مورد ملاحظه قرار گرفته است. با توجه به این که تحقیقات اندکی در زمینه اثر حفاظتی پنتوکسی فیلین بر روی آسیب کب...
[ 18 ] - شناسایی جنسیت جنین انسان از طریق پلاسمای مادر باردار از هفته هشتم به بعد بوسیله Nested-PCR
سابقه و هدف: تشخیص پیش از تولد(Prenatal Diagnosis) جنسیت جنین، نیازمند روش های تهاجمی نظیر نمونه گیری از طریق آمنیوسنتز و نمونه گیری از پرزهای کوریونی(CVS) می باشد. در سال های اخیر، یکی از روشهای غیر تهاجمی بررسی حضور DNA سلولهای هسته دار جنینی در پلاسمای خون مادر است که در این تحقیق مورد بررسی قرار گرفت. روش بررسی: در این مطالعه تجربی، سیستم Nested-PCR برای تشخیص ژن SRY جنینی با بکارگیری DNA ج...
[ 19 ] - بررسی اثرات آپوپتوزیس القاء شده پروتئین ژن VP2 کلون شده از ژنوم ویروس بورس عفونی بر سلولهای سرطانی لنفوسیتی B انسان در in vitro
سابقه و هدف: آپوپتوزیس یا مرگ سازمان یافته، اصلی ترین مکانیسم در تکامل و هوموستاز بافت های بالغ در جهت حذف سلول های غیر ضروری است که القای آن روشی موثر در درمان سرطان می باشد. .هدف این مطالعه بررسی القای آپوپتوزیس پروتئینVP2 کلون شده از ژنوم بورس عفونی بر سلول های سرطانی لنفوسیتی B انسان می باشد. روش بررسی: در این تحقیق پس از کلونینگ ژن VP2 در داخل مخمر پیکیا پاستوریس، پروتئین بیان گردید. تو...
[ 20 ] - نقش متغیر زمان بر تغییرات آپوپتوزیس متعاقب ایسکمی - رپرفیوژن در قلب ایزوله موش صحرایی
سابقه و هدف : مطالعه اثرات وابسته به زمان ایسکمی-رپرفیوژن بر روی سلول های میوکارد.روش بررسی: در این مطالعه تجربی رت های نر از نژاد SD با وزن 330-270 گرم به صورت تصادفی به چهار گروه 10 تایی تقسیم و بعد از بیهوشی با پنتوباربیتال سدیم (50-60 IP-kg/mg)، قلب رت های گروه تیمار به سرعت ایزوله و به دستگاه لانگندروف محلول کربس با فشار ثابت و دمای 37 درجه سانتی گراد متصل شدند و در زمان استابیلیزاسیون، 30...
[ 21 ] - تعیین سطح بیان ژن fgf-9 در نمونه های سرمی بیماران مبتلا به سرطان ریه
سابقه و هدف: سرطان ریه یکی از علل عمده مرگ و میر ناشی از سرطان است. فعال سازی سیگنال هایfgf از جمله fgf-9 در بیماری زایی چندین سرطان، از جمله سرطان ریه نقش دارد. همچنینfgf-9 ممکن است یک شاخص برای پیش آگهی باشد و با میزان بقا در بیماران مبتلا به NSCLC مرتبط است. بنابراین در این تحقیق میزان بیان ژن fgf-9 در سرم افراد مبتلا به سرطان ریه بررسی گردید. روش بررسی: در این تحقیق، 50 نمونه سرم افراد سالم...
Co-Authors