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Showing 28 results for Jani

Ramin Azarhoush , Rahim Jorjani , Ali Amiri ,
Volume 0, Issue 0 (2-2024)

Farajollahi M (md), Marjani Aj (phd), Ahangari T (phd), Vakili Ma (msc), Saghali Nm (md),
Volume 1, Issue 1 (Spring 1999)

Urinary tract infection is one of the most common bacteria infections. The incidence of urinary tract infections in school age is more common in girls than in boys. Children have to be screened for asymptomatic bacteriuria before they reach to the state of renal damage. In our district no such study has been made to determine the prevalence of bacteriuria. Urine samples were collected from 642 school girls aged between 6-11 years, and were investigated by doing urine analysis and urine culture. 15 girls had significant bacteriuria, (>10^5 bacteria/ml). 11 children had pyuria (WBC>5), and 6 samples had both significant bacteriuria and pyuria. At the same time there were 5 cases with sterile pyuria. 6 girls had nitrite in their urine samples. All of the urine samples with positive nitrite test had significant bacteriuria. The study shows that there is a positive correlation between pyuria of nitrite and significant bacteriuria. Escherichia-coli is the most common microorganism in schoolgirls with significant bacteriuria. The incidence of screening bacteriuria was 2.3% which most of them were asymptomatic.
E.alijani (m.sc), M.shekarabi (ph.d), M.kamgooyan (m.sc), S.arshi (m.d), M.jafari-Modrek (m.sc),
Volume 4, Issue 2 (Autumn & Winter 2002)

Major histocompatibility complex (MHC), which plays a major biological function in immune response, is generally associated with so many human disease. During recent years a new clinical relevance of MHC disease. On the other hand there is a strong correlation between some autoimmune diseases and MHC system such as in some allergic abnormalities and its relation with HLA antigens. In order to investigate this concept 30 atypic asthmatic patients and 100 healthy controls were selected. Human leukocyte antigen (HLA) typing was performed by standard NIH procedures and the results analyzed. The frequency of HLA-A2, A11, Aw19 and HLA-B51 decreased in atypic asthmatic patients with no association recorded significantly between HLA-C and allergic asthma. The results of our study indicated that there was a significant relationship between allergic asthma and HLA-I antigens.
A.marjani (ph.d), M.mojerloo (m.d), Ar.mansourian (ph.d), R.azerhoosh (m.d), Mr.rabei (m.sc), Kb.kalavi (m.sc),
Volume 5, Issue 1 (Spring & Summer 2003)

Background and Objective: Zinc and Copper are the important trace elements for human growth and body’s biological functions. These trace elements are the important cofactors of many enzymes. Serum variation of these trace elements are clinically important and should be taken into consideration, because fluctuation of these elements are behind many clinical manifestation in human. Diarrhea and vomiting can be the clinical symptoms associated with the toxic level of Zinc and Copper in the body. The concept behind this study is to determine the serum levels of Zinc and Copper in hemodialysis patients before and after dialysis, to explain the differences of such trace element concentration in these patients. Materials and Methods: This project is a comparative study. The sample population was 50 of hemodialysis patients chosen randomly from the patients referred to the 5th Azar Hospital in Gorgan (33 male and 17 female). The concentration of Zinc and Copper of these patients was determined before and after the dialysis. Results: The results from this research projects indicated that the average concentration of Zinc and Copper in hemodialysis patients after dialysis were 135.32±59.32 and 136.40±51.52 microgram/deciliter which markedly increase in compare to the serum concentration of these trace elements before the dialysis which were 78.38±37.46 and 89.92±32.54 microgram/deciliter respectively. On the basis of the results, we found in this study the average increased concentration of Zinc and Copper after the process of dialysis among the hemodialysis patients had a meaningful statistical variation (P<0.001). Conclusion: Uremia, dialysis blood tube, heavy metal contamination, the quality of dialysis membrane and the quality of water used for the process of dialysis can be a reason for the increased concentration of Zinc and Copper. Such increase in the serum concentration of these trace elements can be the basis for some clinical abnormalities. Therefore it is suggested to determine the rate of released Zinc and Copper from hemodialysis machine, before the procedure is done To enable the medical team to evaluate the serum Zinc and Copper and correct it by nutritional therapy.
Aj.marjani (ph.d), M.mojerloo (m.d), Ar.mansourian (ph.d), Mr.rabiei (ms.c),
Volume 6, Issue 1 (Spring & Summer 2004)

Background & Objective: Free radicals are formed in all living organisms during normal cell metabolism. Patients with chronic renal failure, which regularly dialyzed are the candidates for, free radical damages. The aim of this study with the discriminative information was to evaluate the effect of hemodialysis on Lipid peroxidation (The level of Lipid peroxidation expressed as malondialdehyde) and erythrocyte antioxidant enzyme (Glutathione peroxidase) before and after the dialysis and compared with control group, to find out the effect of hemodialysis on the level of Lipid peroxidation of plasma and the activity of erythrocyte antioxidant enzyme. Materials & Methods: This investigation was an analytical type of study and sampling procedure was according to purposive method. 22 patients with chronic renal failure (CRF) disease who were hemodialysed at 5th Azar Hospital of Gorgan dialysis center and 22 age and sex matched healthy control were recruited for this study. The data was analyzed by SPSS software using T-test. Results: Plasma malondialdehyde showed significant difference between the predialysis (And control group. It was increased in the postdialysis group (2.32±0.38 nmol/ml) when compared with predialysis (1.27±0.23 nmol/ml) and control group (0.98±0.17 nmol/ml). Erythrocyte antioxidant enzyme was decreased in postdialysis group (22.26±4.76 unit/gram hemoglobin) when compared with predialysis (29.66±5.95 unit/gram hemoglobin) and control group (37.52±6.26 unit/gram hemoglobin). There was also significant difference between control and predialysis group. Erythrocyte antioxidant enzyme was lower than control group in dialysis group. Conclusion: The observation of meaningful differences in reduction of erythrocyte antioxidant enzyme and increasing level of plasma Lipid peroxidation in the hemodialysed patients after the process of dialysis, maybe related with the patient, uremia, dialysis membrane (The loosing antioxidant enzyme through this membrane), and the dialysis process (May increase Lipid peroxidation during the dialysis process). These states of affairs may play an important role in progress of cardiovascular abnormality in hemodialysed patients. Due to this conditions a review of hemodialysis membrane, the techniques used in the dialysis, the consumption of various oral antioxidant, the elimination of active oxygens from the dialysis surrounding are among the measures which can prevent sudden cardiovascular abnormality in the hemodialysis patients and ultimately these important factors up-grade the patients quality of life.
Mohammad Reza Darabi Mahboob (md), Alireza Delijani (md),
Volume 10, Issue 3 (10-2008)

Adrecortical virilizing tumors are rare in the pediatric age group. There is 1% incidence for adneral cancer. In comparison with adult patients , there is function adrenalectomy tumor in pediatric group. The patient in this report was a 20 months old female presenting with clinical signs of virilizition that were characterized by increased bone mass, pubic hair growth external genitalia. The laboratory test showed: High level of testosterone (400 ng/dl) , andrestandion (3.6ng/ml) and progestron (19.9ng/ml) and very high level of (8000ng/ml) dehydroepiandrosterone. In CT scan there was right adrenal mass with size>5 cm. The diagnosis of right an adrenocortical functional tumor led to the choice of open surgical adrenal with flank apreach between 10 and 11 ribs. Pathologic examination showed carcinoma of the adrenal. Patient discharged 5 days after operation. Surgery was done via lumbar incision and follow up was carreid out for 10 years, and there was not any pathological lesion.
Mahnaz Fouladinejad (md), Naser Behnampour (msc), Ali Pashaei Zanjani (student), Mohammad Hadi Gharib (student), Marjan Akbari Kamrani (student),
Volume 10, Issue 4 (12-2008)

Background and Objective: To evaluate the effectiveness of Neonatal Intensive Cares Many different data banks have been developed. Furthermore, various scoring systems such as SNAP and CRIB have been validated to designate and compared differences among hospitalized patients in NICU. This study was done to determine mortality rate and prevalence of complications in neonates admitted to Taleghani and Dezyani NICU centers in Gorgan - Iran. Materials and Methods: In this discriptive study a questioniare including sex, birthweight, gestational age, duration of hospitalization, age at the time of discharge or death, complications and other information needed for CRIB scoring system, was completed for 46 neonates with gestational age of less than 37-week old and birth weight of less than 1500 grams. Results: Mortality rate was 37% (17 neonates) with the most common cause being respiratory failure. RDS was associated with a 101-fold increase for the chance of death (OR=1.1, CI=12.9-793.6). This probability was 4.7 fold for delivery-time asphyxia. The mean of birthweight, gestational age and CRIB in living and dead infants were 1201 and 934 grams, 30 and 28 weeks and 3.76 and 11.7, respectivly. Using a ROC curve, a cut off point of 7 was reached to predict neonatal outcome for CRIB scoring. Conclusion: This study showed that the mortality rate was higher than the rate in most centers of the world. The mortality rate was directly related with the increase of CRIB score,especially for scores more than 11.
Masoomeh Nazifi (msc), Fatholah Fathi Azarbayjani (phd), Minoo Ilkhanipoor (phd), Farah Farokhi (phd),
Volume 11, Issue 3 (10-2009)

Background and Objective: In recent years many studies have reported that aspirin could have beneficial effect on learning and memory in different diseases of central nervous system. The objective of present study was to explore the effect of aspirin on learning and memory of Rats in pentylenetetrazole kindling model. Materials and Methods: In this experimental study Rats were divided randomly into six groups (n=8). Animals in three groups received aspirin (15 and 30 mg/kg, orally) and saline, one week before and during induction of kindling, respectivley. Kindling was induced in these groups by administration of pentylenetetrazole (PTZ: 40 mg/kg, ip). Two groups of animals received only aspirin 25 and 30 mg/kg orally. Other group received only saline throughout the study and served as health control group. After induction of kindling the learning and memory of Rats was tested in shuttle box. Study was divided to three stages of adaptation, acquisition and retention test. Initial Latency (IL) time before electrical shock and Step through latency (STL) time, 20 min or 24h after acquisition was evaluated as learning and memory index. Locomotor activity was also evaluated in open filed test. Results: PTZ kindling significantly decreased Initial Latency and Step through latency time, 20 min or also 24h after acquisition, and aspirin significantly increased these times in kindled animals (p<0.05). Aspirin also had no significant effect on locomotor activity of animals. Conclusion: This study showed that the administration of aspirin to kindled Rats improved learning and memory impairments induced by pentylenetetrazole kindling.
Deilam Mj (msc), Gheraat Ma (msc), Azarbayjani Ma (phd), Aslani Katooli Ha (bsc),
Volume 14, Issue 2 (6-2012)

Background and Objective: Increasing the intensity of training is one of the factors that improve the athletic performance. Evaluation of psychological and biochemical factors is believed to be beneficial for evaluating the effectiveness of training schedule. Previous studies have shown that there are various responses to the training intensity due to the level of athlete’s fitness and the kind of training. This study was done to investigate the effect of intensive training on salivary level of cortisol, testosterone, α-amylase and mood of elite adolescent wrestlers. Materials and Methods: This quasi-experimental study was performed on fifteen adolescent wrestlers of Iranian national team during 2009. The subjects were under extension training for three weeks. The saliva samples were taken prior, first, second and third weeks of training to determine cortisol, testosterone and α-amylase level of salivary samples. Also, the Brahms questionnaire was used to assess the mood profile before and after the training. Data were analyzed using SPSS-14, ANOVA and student t-tests. Results: There was no significant differences of salivary cortisol (7.69±0.75, 8.1±0.93 ng/ml), testosterone (82.3±0.89, 64.2±1.7 ng/ml), α-amylase (98.81±1.35, 84.2±1.5 U/ml) level and mood (16.4±3.28, 20.08±2.91) of subjects prier and after training. Conclusion: This study indicated that the intensive training do not alter salivary hormons level and mood of elite adolescent wrestlers.
Moosazadeh M, Ashrafian Amiri H, Vaseghi Amiri R, Dehghan A, Nezammahalleh A, Khanjani N,
Volume 16, Issue 2 (7-2014)

Background and Objective: Due to the increase of incidence of extrapulmonary tuberculosis in Iran, This study was conducted to determine the epidemiological pattern of extrapulmonary tuberculosis in the Mazandaran province, northern Iran. Methods: This descriptive-analytic study was carried out on medical record of 3313 tuberculosis patients in Mazandaran province, northern Iran during 2001-11. Age, gender, affected year, area and affected organ were gathered for each patient. Results: 843 (25.4%) of subjects were diagnosed with extrapulmonary tuberculosis. The incidence of extrapulmonary tuberculosis increased by 4% for every unit increase in incidence year (P<0.05). The mean age of patients with extrapulmonary tuberculosis was significantly less than patients with pulmonary tuberculosis (42.8±20.6 years vs. 48.7±21.2, P<0.05). Extrapulmonary tuberculosis was significantly higher in women (P<0.05). The chance of extrapulmonary tuberculosis in women was 1.7 times of men. Lymph node (33%) was the most common affected organ followed by pleura (18.9%) and bone (17.7%). Conclusion: The trend of incidence of extrapulmonary tuberculosis was ascending during 2001 to 2011. The most affected organ in extra pulmonary tuberculosis was lymph nodes.
Mozafari Chenijani Sn, Azarhoush R, Amiriani T, Roshandel Ghr,
Volume 16, Issue 2 (7-2014)

Background and Objective: Colonoscopy is the best method for management of patients with Hematochezia or lower gastrointestinal bleeding (LGIB). This study was conducted to assess the endoscopic and histopathologic findings in patients with hematochezia. Methods: This descriptive –analytical study was done on 117 (50 males, 67 females) patients whom referred to 5th Azar hospital in Gorgan, northern Iran during 2010. Demographic characteristics, medical history and colonoscopic and histopathologic findings were recorded for each patient. Results: Hemorrhoid was the most common finding in colonoscopic examination. Inflammatory bowel disease (IBD) and cancer were the most common feature in the under and higher than 43 age old patients, respectively (P<0.05). Ulcerative colitis (22.2%) was the most common finding in histopathological examination. Rectosigmoid was the most common anatomical location of involvement in IBD cases. Cancer and IBD were occurred in the left colon. Conclusion: Flexible sigmoidoscopy can be a selected procedure for evaluation of hematochezia in the <43 age old patients but in >43 age old subjects sigmoidoscopy or colonoscopy should be made based on patients' status.
Soleimani Mehranjani M , Naderi Noreini S ,
Volume 16, Issue 3 (10-2014)

Background and Objective: Para-nonylphen as an environmental pollutant has weak estrogenic activity and causes oxidative stress in different organs including testis. This study was done to determine the protective effect of vitamin E on the para-nonylphenol induced-testicular toxicity in adult rats. Methods: In this experimental study, 24 Wistar rats were randomly allocated into four groups including control, vitamin E (100 mg/kg/day, orally), para-nonylphenol (250mg/kg/day, orally) and finally para-nonylphenol (250mg/kg/day, orally) plus vitamin E (100mg/kg/day, orally). After 56 days of treatment, removal of the right testis, tissue processing and staining with Heidenhain's Azan, the morphometric parameters of testicular tissue was evaluated using stereological method. Results: The mean volume of seminiferous tubules, height of the germinal epithelium, seminiferous tubules diameter, thickness of the basement membrane, number of spermatocyte, spermatid and sertoli cells significantly reduced in para nonylphenol group compared to the controls (P<0.05). These parameters were significantly increased in the para-nonylphenol plus vitamin E group compared to para nonylphenol group (P<0.05). In the histopathological examination, atrophy of seminiferous tubules, germinal epithelium vacuolation and epithelial disarrangement were observed in para nonylphenol group. Histopathological alterations reduced in para-nonylphenol plus vitamin E group compared to para nonylphenol group. Conclusion: Co-administration of vitamin E with para nonylphenol can prevent the adverse effects of para nonylphenol on the testicular tissue in adult rats.
Sohrabi F , Khanjani Z, Zeinali Sh,
Volume 17, Issue 2 (7-2015)

Background and Objective: The therapy of psychological problems in children and adolescents not only has medicinal aspects, but also it is really considered as prevention of psychological disorders. The most common childhood disorders that may be referred to mental health professionals is behavioral disorders. Among these, the most common is conduct disorder. This study was done to determine the efficacy of adolescent parent management training in conduct disorder symptoms and improve parents' parenting styles in 14-16 adolescent. Methods: In this clinical trial study, following the diagnosis disorder in 32 adolescent the subjects and their parents randomly divided into the intervention and control groups. Disease sign inventory (CSI-4) questionnaire, rabinson parenting style questionnaire and sanders educational package for adolescent were used in pre and post-test. Results: Conduct symptoms in post test significantly reduced after scores modification (P<0.05). Scores in authoritarian parenting style significantly increased while permissive and authoritative styles reduced in comparison with controls (P<0.05). Conclusion: Training parentings improve relationships between parents and children and in addition it is an effective intervention in the treatment of behavioral disorders in children and adolescents.
Gharaei A, Erahimzadeh A, Salimi Khorashad Ar, Jorjani O, Jamshidi A, Shah Bakhsh A, Noornia T,
Volume 17, Issue 2 (7-2015)

Background and Objective: Vulvovaginal candidiasis or Candida vaginitis is a common fungal infection among adult women during reproductive ages and it is the second most frequent infection of the female genital tract. This study was carried out to determine of the prevalancy and species of vulvovaginal candidiasis and related clinical findings. Methods: This descriptive - analytical study was carried out on 400 women whom reffered to gynological center in Chabahar city in South-East of Iran during 2013. Vaginal samples were examined with direct microscopy and cultured on sabouraud dextrose agar and corn meal agar. Germ tube test and sugar assimilation test were carried out to differentiate the Candida species. The clinical findings including burning and itching during intercourse, burning with urination, foul-smelling vaginal discharge, vaginal deliveries, pH of the vagina, cervix appearance, consistency and color of vaginal in patients with vaginal discharge were recorded. Results: The prevalence of vulvovaginal candidiasis was 45.8%. Isolated candida species were candida albicans with 80.87% and Candida non-albicans with 19.13%. There was significant correlation between itching (85.52%) and burning during intercourse (67.87%), hypogastric pain (80.53%) with vulvovaginal candidiasis (P<0.05). 73 patients (39.9%) reported urinary burning. The most common affected by vulvovaginal candidiasis was with marriages age of 11-20 years old (P<0.05). Conclusion: The most common isolated species was candida albicans. The common clinical findings were burning, itching, smelly discharge, vaginal parity.
Jafarzadeh L, Mobedi Z, Soleimani A, Al-E-Rasool M , Kazemi Vardanjani A ,
Volume 17, Issue 3 (10-2015)

Background and Objective: Rheumatoid arthritis is a chronic, inflammatory and systemic disease with peripheral, symmetric polyarthritis symptoms. Several genetic, environmental, and immunological factors contribute greatly to the disease pathogenesis. This study was done to evaluate the effect of anti-cyclic citrullinated peptide (anti - CCP) and rheumatoid factor on clinical disease activity index (CDAI) in the patients with rheumatoid arthritis. Methods: This prospective cohort study was done on 64 rheumatoid arthritis patients according to ACR criteria (1978) whom referred to Rheumatology Clinic of Hajar Hospital in Shahrekord, Iran. Patients were clinically examined for primary CDAI and tested for anti - CCP and rheumatoid factor in the prior and six months after the initiation of the study. Results: 81.3% and 74% of the patients had high titers of anti – CCP antibody and positive rheumatoid factor, respectively. A non-significant recudtion was observed in intensity of secondary clinical activity of the disease in compare to primary clinical activity in the patients with high antibody titer. Conclusion: This study indicated the important role of rheumatoid factor and anti- CCP antibody in the on time diagnosis of rheumatoid arthritis.
Aghajani Mh , Tahzibi A, Shahbazi M,
Volume 17, Issue 4 (12-2015)

Background and Objective: Parathyroid proteins involved in calcium homeostasis. With increasing age and other relevant factors, this hormone is not able to perform its role. Using recombinant parathyroid hormone prevent disease progression and effective in improvement of disease. This study was done to design and build the desired construct genes, cloning process and synthesis of soluble parathyroid hormone in E. coli. Methods: In this laboratory study, design and optimization sequence of the gene parathyroid hormone (PTH) was carried out for expression of soluble proteins in bacteria. The construct contining PTH gene (puc 57) transformed into bacteria and cultivation was done in SOB medium then Plasmid extraction was performed. Fragment encoding the PTH was isolated by digestion of the cloning vector and ligate to expression vector (PET-32a). Subcloning process followed by induction with IPTG 1mM. The recombinant parathyroid hormon was expressed in bacteria, subsequently. Results: After enzymatic digestion, the fragment encoding the protein of interest was properly localized. The process was confirmed by polymerase chain reaction (PCR). Following performing a transformation, induction process performed by IPTG with final concentration 1mM that caused the soluble parathyroid proteins to be expressed in bacteria and the process was confirmed by Western blot technique. Conclusion: Protein expression in bacteria due to its rapid growth and the need to inexpensive medium is cost-effective. Soluble recombinant protein expression reduces downstream of recombinant protein production.
Shariatzadeh Sma , Soleimani Mehranjani M, Shahmohammadi R, Naderi Noreini S,
Volume 18, Issue 1 (3-2016)

Background and Objective: Sodium Arsenite is an environmental pollutant which can generate free radicals causing tissue damage. This study was done to evaluate the effect of Green Tea (GTE), as a strong antioxidant, on kidney tissue in mice treated with Sodium Arsenite. Methods: In this experimental study 24 adult male NMRI mice were randomly allocated into four groups including: control, GTE (100mg/kg/day), Sodium Arsenite (5mg/kg/day) and Sodium Arsenite + GTE, for 34 days, orally. Animals were scarified and left kidney was taken out, fixed, sectioned, processed and stained using Heidenhain'azan method. Using stereological technique the total volume of kidney, volume of cortex, medulla, proximal and distal tubule, renal corpuscle, gelomerelus, tuft and capillary, membrane and space of Bowman's capsule and length of proximal and distal tubule were determined. Creatinine, BUN and MDA serum samples were measured. Results: The mean of total volume of cortex, proximal tubule, distal tubule, renal corpuscle and gelomerolus, taft, Bowman's capsule space, size of epithelium and lumen of proximal and distal tubule were significantly reduced in Sodium Arsenite group compared to control (P<0.05). These parameters were significantly increased in the Sodium Arsenite + GTE group in comparison with Sodium Arsenite group (P<0.05). The creatinine, Blood urea nitrogen (BUN) and MDA were significantly increased in the Sodium Arsenite group in compared to the control group (P<0.05). These parameters were significantly reduced in the Sodium Arsenite + GTE group in comparison with Sodium Arsenite group (P<0.05). Conclusion: Green tea has a protective role in Sodium Arsenite induced nephrotoxicity.

M Soleimani Mehranjani, E Safari Senejani , S Naderi Noreini ,
Volume 19, Issue 2 (7-2017)

Background and Objective: Bisphenol A (BPA) is an endocrine disruptor chemical and as an environmental pollutant is able to generate free radicals causing tissue damage. This study was done to investigate the effect of Nigella sativa oil against BPA induced toxicity on the tissue of male NMRI mice kidney by stereological method.

Methods: In this experimental study 24 adult male NMRI mice (32±3 g) were randomly allocated into control, BPA (200 mg/kg/day), BPA (200 mg/kg/day) plus Nigella sativa oil (5 ml/kg/day) and Nigella sativa oil (5 ml/kg/day) groups and treated for 5 weeks, orally. At the end, animals were sacrificed, their left kidneys were removed, fixed, sectioned, processed and stained with Heidenhain' azan staining method. Then, the kidney tissue sections were evaluated using stereological method and serum malondialdehyde (MDA) level was also measured.

Results: The total weight and volume of kidney, volume of cortex, volume of proximal and distal tubules and volume of their lumen, volume of interstitial tissue, volume of glomeruli, tuft, as well as serum MDA level significantly increased in BPA treated group compared to the controls (P<0.05). These parameters were significantly reduced in BPA plus Nigella sativa oil group compared to BPA ones (P<0.05).

Conclusion: This study revealed that Nigella sativa oil can reduce the oxidative stress toxicity induced by BPA in the mice renal tissue.

G Farjanikish , Sh Esmaeeli-Sani,
Volume 19, Issue 2 (7-2017)

Background and Objective: The electromagnetic field producer sets in daily life causes concerns about the adverse effects of such waves on human health. This study was done to evaluate the effect of cell phones microwaves on histologic structures of some visceral organs in rat.

Methods: In this experimental study, 80 immature Wistar male rats with weight of 100-140 gram and 5 to 6 weeks age were randomly allocated into 3 experimental groups and one control group. The experimental rats were exposed to cell phones microwaves 5 hours a day for 1, 2 and 3 months. The control group received no radiation. After the experimental period rats were sacrificed and the appropriate tissues of the lung, heart, liver, brain and pancreas were prepared. Sections in 5 µm thicknesses were stained by hematoxylin and eosin and studied microscopically.

Results: Histological changes including edema, inflammatory cell infiltration and cell degeneration in the lung and mild degeneration and coagulation necrosis of the myocardial cells in the heart were observed. Histopthological examination of the liver revealed dilation of central veins and sinusoids, vacuolization of hepatocytes and mononuclear inflammatory cell infiltration. Limited changes were observed in pancreas and brain. Histological changes were increased in the groups that were exposed longer period of time to radiation.

Conclusion: This study indicated that the harmful effect of cell phones radiation on rat tissues depending on the duration of exposure.

Masoumeh Tajik, Vahid Khori , Abdoljalal Marjani , Shohreh Taziki , Mohammad Ali Zeyghami , Azad Reza Mansourian ,
Volume 19, Issue 4 (12-2017)

Background and Objective: A brief and short duration episode of ischemia is recorded in ischemic preconditioning (IPC). This latter condition provides a status in which large region of heart is protected when prolonged ischemia occurred. Levothyroxine play a protective role in IPC induction, and simultaneously with stress oxidative. This study was conducted to determine the protective effect of levothyroxine with oxidative stress reduction mechanism in ischemic preconditioning model in rat heart.
Methods: This experimental study was performed on 30 male Wistar rats in three groups of 10, as follows. In the reperfusion ischaemia group (IR), the heart of the animal was placed in a Langendorff apparatus. In the ischemic preconditioning group (IPC), prior to major ischemia, was exposed to 4 periods of 5-minute ischemia with reperfusion. In the intraperitoneally administered group, levothyroxine at a dose of 25 microgram per 100 g of body weight, the heart was exposed to reperfusion ischemia. The area of infarct and the level of malondialdehyde in the heart tissue were measured.
Results: The volume of Infarcted region in IR and IPC groups was 26.55 and 11.11 respectively. The same index for the Levothyroxine receiver was 12.56. Based on these findings it was demonstrated that Levothyroxine injection reduced the Infarcted region significantly similar with IPC (P<0.05). The MDA Levels in IR and IPC were 1328 and 777, respectively and in Levothyroxine group it was determined as 762. The size of Infarcted region in both IPC and treated with Levothyroxine groups significantly reduced in compared to IR group (P<0.05).
Conclusion: Injection of levothyroxine with ischemic preconditioning reduced the effect of reperfusion maladaptive ischemia in rat heart.

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مجله دانشگاه علوم پزشکی گرگان Journal of Gorgan University of Medical Sciences
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