Journal of Gorgan University of Medical Sciences
Year:2016 | Volume:18 | Issue:2 (58)|Papers Count:28

Catalase is the one of the most important antioxidant enzymes that is found abundantly in liver and kidney. The alteration in activity and function this latter enzyme are widely investigated in various types of cancer to understand the cancer mechanism and its treatment. The changes in the catalase activity levels in a variety of cancer cells is as a specific property of tumor tissues due to the reducting catalase activity at mRNA level. In this review, various reports that examined the alterations in catalase activity and resistance to chemotherapy and its complications in the literature are summarized and discussed. Due to the important role of hydrogen peroxide in various stages of cancer process, catalase alters this process by detoxification of hydrogen peroxide. Chemotherapy increase free radicals to destroy the tumor cells, then, catalase activity reduced their impact on cancer cells. On the other hand, it might be concluded that production of drug resistance in chemotherapy is resulted due to increasing catalase activity. Therefor it seems catalase has contradictory influence on the treatment and development of cancer.

Background and Objective: Low back pain is a common musculoskeletal disorder. Core stability exercises have been recommended to improve neuromuscular skeletal system function in order to increase the protection of vertebral column and improve functional activities. This study was done to evaluate the effect of core stability and general exercise on functional activity in non- specific low back pain patients.Methods: In this clinical trail study, sixty patients with chronic low back pain were randomly divided into general exercise (n=30) and core stability (n=30) groups. The protocol of intervention included 4 weeks (3 sessions in week) of designed exercise for each group. The functional activities were measured before and after intervention.Results: Functional activity indicators were significantly increased in core stability exercise compared to general exercise (P<0.05). Conclusion: Core stability exercise is more effective than general exercise to improve functional activities in patients with non-specific low back pain.

Background and Objective: Flax seed has been shown to play a role in the prevention and treatment of dislipidemia and inflammation, which may enhance the benefits of training. This study was done to determine the effect of 10 weeks of aerobic training with flax seed supplementation on blood lipids profile and C-reactive protein in obese women.Methods: In this clinical trail study, 45 obese middle-age women were randomly divided into 3 groups. Aerobic training program was performed 50-60 min/d, 3d/wk, for 10 weeks. Subjects in aerobic training with flax seed supplementation were received 6-9 garms, daily of flax seed. Body composition and metabolic parameters were assessed before and after the training period.Results: Flax seed supplementation significantly improved triglyceride, HDL-cholesterol TC/HDL, body weight, body mass index, waist circumference and fat mass (P<0.05). Flax seed supplementation in combination with aerobic training significantly improved adiposity indices body weight, body mass index, waist circumference, fat mass, triglyceride, HDL- cholesterol, LDL- cholesterol, LDL/HDL and TC/HDL (P<0.05).Conclusion: Flax seed is safe and effective for improvement of cardiometabolic health in obse women and combination of flax seed can enhance beneficial effect of training over a ten-week period.

Background and Objective: Alzheimer's disease is an age-related disease that is characterized by dementia and loss of neurons in the brain. It has been shown that brain oxidative stress plays an important role in aging and neurodegenerative disorders. This study was done to evaluate the effect of grape seed extract (GSE) on memory impairment induced by intracerebroventricular (ICV) injection of streptozotocin (STZ) in animal model of Alzheimer's disease.Methods: In this experimental study, Eighty adult male Wistar rats were randomly allocated into control, sham, grape seed extract (100 mg/kg/bw, 30 days, orally) plus STZ and STZ plus grape seed extract. Animals memory were evaluated using Morris water maze, shuttle box and T maze tests.Results: Intracerebroventricular injection of STZ caused memory corruption in all tests. Administration of GSE before and after of administration of intracerebroventricular STZ in the Morris water maze test, significantly reduced latency to get to the hidden platform compared to Alzheimer's group (P<0.05). The latency to enter the dark compartment in passive avoidance memory test significantly increased in compare to animal model of Alzheimer's disease (P<0.05). The selection of the right arm of the T-maze test in animals that received grape seed extract before and after of STZ injection significantly increased compared to animal model of Alzheimer's disease (P<0.05).Conclusion: Grape seed extract has important effect in prevention and improving memory impairment induced by intracerebventricular injection of STZ.

Background and Objective: After chronic stress, brain volume and weight reduces and in turn, adrenal weight and volume increases. This study was performed to determine the effect of chronic stress and memantine administration within amygdala on the alterations of brain’s volume and weight ratio to volume and weight of the adrenal gland on male mice.Methods: In this experimental study, bi- or unilateral amygdala cannulation was preformed stereotaxically. A week after recovery, animals were received different doses of memantine (1, 0.5, and 0.1 mg/mouse), five min before stress induction. Electric foot shock induced to animals for seven consecutive days. At the end of the seventh day, animals were sacrificed and their brain and adrenal glands were fixed in formalin 4%. The volume and weight was determined by mercury immersion and accurate balance respectively.Results: Stress non- significantly reduced brain’s volume ratio to volume of the adrenal gland and brain’s weight ratio to weight of the adrenal gland. Memantine administration within amygdala inhibited stress effect. Memantine administration in low and medium doses within right and left amygdala significantly increased brain’s volume and weight ratio to volume and weight of the adrenal gland (P<0.05).Conclusion: Memantine dose and side dependently inhibits the effect of induced stress in male mice. Also, unilateral memantine administration within the left and right amygdala was more effective.

Background and Objective: Epilepsy is a common neurological disorder. Plantago major (P. major) is used in traditional medicine due to flovonoids and vitamic C and antioxidant properties. This study was done to evaluate the hydro alcoholic extract of Plantago major L. on pentilentetrazol-induced seizures in male mice.Methods: In this experimental study, 50 NMRI male mice randomly allocated into control and four experimental groups. Seizures in animals induced by 60 mg/kg/bw of pentilentetrazol (PTZ), interperitoneally. Animals in experimental groups were received 5, 10, 25 and 50 mg/kg/bw of hydro alcoholic extract of Plantago major L. 30 min before each PTZ injection. The animals in control group were received saline, interperitoneally. After treatment, the behavior of animals during 20 minutes and mortality rate were recorded.Results: Seizure threshold of animals significantly increased in experimental groups which were received 50, 25, 10 mg/kg/bw of P. major extract in comparision with controls (P<0.05). Mortality rate of animals significantly reduced in experimental groups which were received 50, 25, 10 mg/kg/bw of P. major extract in comparision with controls (P<0.05).Conclusion: The hydro-alcoholic extract of Plantago major L. reduces seizure threshold in pentilentetrazol-induced seizures mice.

Background and Objective: Different physical activities affect on anti-oxidative system. Varity, period and intensity of activities are necessary in health improvement. This study was carried out to determine the effect of medium period of progressive anaerobic training on serum level of superoxide dismutase and Catalase in female rats.Methods: In this experimental study, 30 female rats were randomly allocated into control and anaerobic training groups. The training program lasted for 8 weeks with control (without activity) and anaerobic including 3 sessions in a week with speed of 24-30 meters per minute in slope range (5<slope>15) for 30 seconds.Results: Serum level of superoxide dismutase was significantly increased in progressive anaerobic training group (109.1±17.3 U/ml) in compare to controls (98.8±12.8 U/ml) (P<0.05). Serum level of Catalase was 51.2±7.2 and 48.4±4.2 U/ml in control and progressive anaerobic training, respectively. This difference was not significant. Conclusion: The medium period of progressive anaerobic training influences serum level of superoxide dismutase and Catalase in female rats.

Background and Objective: Tamoxifen is one of the selective estrogen receptor modulators that exerts estrogen / anti-estrogen effects in various tissues. This study was done to evaluate the effect of chronic administration of tamoxifen on spatial memory and passive avoidance task in adult male Wistar rats.Methods: In this experimental study, 48 adult male Wistar rats were randomly divided into control, sham and tamoxifen groups. Animals in sham and tamoxifen groups were received tamoxifen solution and tamoxifen (400mg/kg/day) orally for 35 consecutive days. At the end of treatment, spatial learning and memory of animals was assessed using the Morris water maze task and passive avoidance memory was examined using the shuttle box.Results: The time spent and distance moved to reach the platform, significantly increased in tamoxifen group compared to controls (P<0.05). In addition, the time spent and distance moved in the target quadrant (in the probe test) significantly reduced in tamoxifen group in compared to controls (P<0.05). In passive avoidance task, tamoxifen significantly decreased the time of the entrance to the dark room compared to control animals (P<0.05).Conclusion: Long-term administration of tamoxifen impairs spatial learning and memory and passive avoidance memory in rats.

Background and Objective: Diabetic neuropathy is one of the most prevalent complications of diabetic micro-vascular that causing sensory loss of the legs, pain and disorder in proprioception after destroying of the lower limbs nervous system afferents consequently leads in balance disorder. This study was done to determine the effectiveness of reflexology and Yumeiho massages on lower limb pain and keep balance in females with diabetic neuropathy.Methods: In this semi-experimental study, thirty-four patients with diabetic neuropathy in lower limb non-randomly divided into reflexology, Yumeiho and control groups. Pain and balance were measured using the visual analogue scale, Sharpened Romberg and berg test respectively that were completed at baseline and after 6 weeks. Six weeks of Yumeiho and reflexology massaging were applied over 3 days in week for 30 minutes on the experimental groups.Results: Pain and balance of patients singnificantly improved in reflexology and Yumeiho groups in compared to controls (P<0.05). There was no significant difference between reflexology and Yumeiho groups. Conclusion: Reflexology and Yumeiho massages have a same impact on the pain rate and balance of lower limb in women with diabetic neuropathy.

Background and Objective: Cognitive behavioral therapy based on religion can increase the religious mind. This study was done to evaluate the effectiveness of cognitive behavioral therapy based on religion on depression and quality of life in patient with HIV/AIDS.Methods: In this quasi -experimental study with pretest, post test and follow up with control group, 30 patients with HIV were non-randomly divided into intervention and control groups. Patients in intervention group were received 12 sessions of cognitive behavioral therapy based on religion, but patients in control group did not receive any intervention. Beck depression test (BDI-II) and quality of life questionnaire (WHOQOL-Brief) were used.Results: The rate of depression in intervention group significantly reduced in compared to controls (P<0.05). The rate of quality of life significantly increased in intervention group in comparision with controls group (P<0.05). These results significantly persisted after follow- up period (P<0.05). Conclusion: The cognitive behavioral therapy based on religion is effective on decrease of depression and increase of quality of life in patients with HIV/AIDS.

Background and Objective: Heel spur is a common rearfoot syndrome in more than 45 aged people which accompanied with pain. This study was done to assess the effect of silicon insole on plantar pressure distribution in subjects with heel spur.Methods: In this quasi-experimental study, 12 female and 3 male with heel spur were recruited. Plantar pressure in five areas of foot was measured by Pedar-X insole when wearing standard shoe only; shoe with foot orthosisimmediately after 9 meter walking.Results: Silicon insole reduced pressure in medial forefoot (P<0.05) and heel (P>0.05). Silicon insole increased force (P<0.05), contact area (P<0.05) and pressure time integral (PTI) (P<0.05) in medial midfoot and reduced PTI in medial forefoot (P<0.05).Conclusion: Silicon insole reduced mean peak pressure in medial forefoot and mean peak pressure in five area of foot.

Background and Objective: Patients with psychological disorders including depression, anxiety and patients with choronic psychological diseases are not suitable for cosmetic rhinoplasty. This study was done to evaluate the mental health status before and after cosmetic rhinoplasty.Methods: This quasi- experimental study was done on 100 women and men with mean age of 26.85±6.60 which candidated for cosmetic rhinoplasty. Subjects filled out psychological disorder symptom questianare (SCL-90-R) before and 3-6 months after cosmetic rhinoplasty.Results: Women had more symptom (P<0.05) of depression (7.24 versus 10.79), somatization (4.64 versus 7.35), obsessive-compulsive (5.67 versus 8.51), interpersonal sensitivity (5.48 versus 7.52), anxiety (5.26 versus 8.07), symptom distress index (0.58 versus 0.79) and totally positive symptoms (32.29 versus 41.06) in comparison with men. The main effect of time factor showed that there was not significant difference between symptoms of psychological disorder before and 3-6 months after cosmetic rhinoplasty. Interactional effect of gender and time was not significant for each psychological disorder symptom.Conclusion: The differences of deviation of psychological disorder symptoms, before cosmetic rhinoplasty and 3-6 months after cosmetic rhinoplasty were not significant. This finding can denotes existence of psychological symptoms before cosmetic surgery. Cosmetic surgery strengthens psychological symptoms in women the assessment and psychological intermediate with the aim of reducing psychological symptoms especially at time range of 3-6 months should be done.

Background and Objective: Attention deficit hyperactive disorder (ADHD) is commnest psychological disorders in children. This study was done to evaluate the effectiveness of rhythmic games on social skills of children with ADHD.Methods: In this quasi -experimental study with pretest, post test and follow up with control group, 30 boys student with ADHD were non-randomly divided into the two groups. Conners rating scale and social skills checklist were used.Results: Social skills significantly increased in ADHD students and this effectiveness continued in follow up stage (P<0.05).Conclusion: Play therapy is effective on social skills of children with ADHD.

Background and Objective: Vitiligo is one of the most frequent skin disorders with a prevalence of 1-2% in different populations. Although many theories have been suggested for its pathogenesis, but the most popular hypotheses is the role of autoimmunity in Vitiligo. This study was done to evaluate the thyroid dysfunction and thyroid autoantibodies in patients with Vitiligo. Methods: This case-control study was carried out on 45 patients with Vitiligo and 45 age- and sexmatched healthy individuals as control group. Age, gender, duration of the disease and type of Vitiligo were collected through a standard questionnaire. Thyroid autoantibodies including thyroglobulin antibody, anti- thyroglobulin and thyroid peroxidase antibody, and anti-TPO thyroid hormones Tetraiodothyronine (T4), Triiodothyronine (T3) and thyroid stimulating hormone (TSH) in Vitiligo patients and healthy volunteers were measeared. Results: Serum level of T4 was significantly reduced in Vitiligo patient compared to controls (P<0.05). Serum level of T4 in 20% of Vitiligo patient and 2.2% of control cases was less the normal level. Anti- TPO in 14 (31.1%) of Vitiligo patient and 6 (13.3%) of controls were higher than normal range (<60IU/m) (P<0.05). Serum level of anti- thyroglobulin was significantly higher in those with Vitiligo in compared to controls (P<0.05).Conclusion: This study showed that the thyroid dysfunction particularly hypothyroidism and anti-TPO is more common in Vitiligo patients.

Background and Objective: Tuberculosis (TB) is the main cause of death in the world. Half of the patient eventually will die during first 5-year of infection if they do not receive suitable treatment. According to WHO’s report, treatment success in Iran is lower than the regional and global mean. This study was conducted to identify the effective factors of treatment failure among tuberculosis patient in golestan province- Iran.Methods: This cross- sectional study was conducted on 331 new smear positive tuberculosis patients that detected in TB laboratory in in golestan province-north of Iran during 2014. Inclusion criteria included weight more than 30kg, age greater than 13 years, diabetes, immune deficiency, liver or kidney diseases. Patients were treated according to a protocol for a period of two months on the DOTS strategy. The criterion of treatment outcome was sputum smear at the end of the second month of treatment. The effect of gender, medication regiment, age, weight, smoking, addiction and severity of smear basilli load on treatment outcome was assessed.Results: 50.8% and 49.2% of patients were treated with combination and separate medicinal regiments, respectively. The conversion rate of smear positive was 67.7% at the end of the second months. According to multivariate logistic regression, the age of the patient (95% CI: 0.96-0.99, OR: 0.98, P=0.017), addiction (95% CI: 1.26-4.54, OR: 2.4, P=0.008), ethnicity (95% CI: 1.86-7.02, OR: 3.62, P=0.0001) and diagnostic smear bacilli load (P<0.0001) were the important effective variables.Conclusion: The success of two months treatment was fairly low and the important factors on treatment success during the intensive phase were patient age, smoking, addiction and diagnostic smear bacilli load.

Background and Objective: Sleep is an important component of the circadian cycle is associated with the restoration of the physical and mental faculties. Physical activity is one of the confounding factors in improving sleep quality. This study was done to determine the effect of physical activity on quality of sleep in female students.Methods: This cross-sectional study was conducted on 370 female students in Zabol University in southeast of Iran. Demographic data through a questionnaire were collected for each subject. Sleep quality and physical activity of subjects were recorded using standardized questionnaire Pittsburgh sleep quality index (PSQI) and physical activity Beck test. Subjects according to physical activity divided into active and inactive groups.Results: Poor sleep quality was seen in 25.2% and 67.4% of active and inactive students, respectively. Mean of Sleep quality in both groups active 5.73±3.22 and inactive 7.21±3.75 was inappropriate but sleep quality in active females was higher than inactive females (P<0.05). A favorable condition for the quality of sleep was seen in 65.7% of the active group with BMI<25 and only 9.1% of students BMI was more than 25. In inactive students, 60.8% of subjects with BMI<25 had poor sleep quality. Both levels of BMI, sleep quality was significantly different between the groups, but this difference was higher in the active group (P<0.05).Conclusion: Poor sleep quality was seen in high percentage of female students and physical activity influences the quality of sleep.

Background and Objective: Resistance of Staphylococcus aureus to antibiotics is one of the major global health problems in human societies. Thus, evaluation of pattern of antibiotic resistance in its different strains is very important. This study was carried out to evaluate the antibiotic resistance in Staphylococcus aureus isolated from clinical samples by disk diffusion and PCR methods.Methods: In this laboratory- descriptive study, 50 isolates of Staphylococcus aureus to be identified from clinical specimens. Methicillin resistance was examined using PCR and antibiotic susceptibility of isolates was tested by disk diffusion method.Results: 50 isolates were resistant to methicillin, ampicillin and penicillin. The resistance of isolates to erythromycin, Gentamicin, Clindamycin and Ciprofloxacin were 48%, 34%, 34%, 34%, respectively. The PCR method showed that 98% of Methicillin Resistance of Staphylococcus aureus isolates carried the methicillin resistant gene.Conclusion: This study indicated that 98% isolates harbor mecA genes and more resistant to methicillin related mecA genes.

Background and Objective: Yersinia is a gram-negative bacillus that cause diarrhea through consumption of contaminated food and water. This study was performed to identify the atypical Yersinia virulence markers isolated from children with diarrhea. Methods: This descriptive cross -sectional study was done on 384 fecal samples of 0- 14 years old children admitted at children medical center from August 2011 to August of 2012. Fecal samples, for the enrichment, after 21 days of incubation in alkaline buffer with pH=7.2 at 4degree C, on days 7, 14 and 21 samples were cultured on CIN agar and Mac agar and then confirm the differentiation atypical Yersinia from other typical Yersinia species from fermentation of different sugars. Isolates were tested for marker of virulence including calcium dependence, auto agglutination, Congo red uptake and binding of crystal violet.Results: Out of 384 stool samples, 4 (1.04%) were infected with Yersinia (Yersinia frederikseni, Yersinia kristensenii and Yersinia enterocolitica). Out of these three, only two samples in association was positive with virulence markers.Conclusion: Phenotypic markers can be used to study the properties of phenotypic strains of Yersinia.

Background and Objective: Poisoning is a major public health problem and a serious form of the common causes of hospital emergency visits in many countries. Incidence of toxicity based on cultural and economic characteristics of communities are varied. This study was done to determine the pediatric poisoning factors in children.Methods: This descriptive-cross sectional study was performed on 201 patients younger than 12 years old with posinnig symptoms whom referred to hospitals in Shahroud city of central part of Iran from April 2011 to March 2012. Demogaphic data, posinnig symptoms, posinnig agents, time of hospitalization and outcome of posinnig for each child were recored in quetionare. Results: Opium was the most common consumed material with (51.2%) while metadon considered to be the major opium. 180 (89.6%) and 21 (10.4%) children were poisoned accidentaly by their parant respectively. The clinical manifestation of the affected children were 15 (7.5%), 11 (5.5%), 93 (46.3%), 26 (12.9%), 19 (2.5%) and 22 (10.9%) without any symptoms, neuro-respiratory, nervous, gastrointestinal, gastrointestinal-respriatory and weakness respectively. Two children were died in the course of this project. There was a significant statistical correlation between the reason for poisoning and age parant education level and type of poisoning. Also, there was a relation between the type of poisoning and place of residence (P<0.05).Conclusion: This study shows that the most common cause of poisoning among children was opiums.

Case presentation: A 20 month-old hypotonic boy with a history of preterm labor at 32 weeks of gestational age, secondary generalized seizures in infancy, hypothyroidism (T4: 2, TSH: 14); motor and speech developmental delay, mild ataxia and renal failure (chronic kidney disease: CKD) was presented to the clinic of Taleghani pediatric hospital in Gorgan, Northern Iran during 2015. In further evaluation, the patient did not have fix and follow occularly and the head of the left optic nerve was atrophic and congenitally malformed although it seemed the visual prognosis for the right eye was even good with just a slightly pale nerve. The renal ultrasonography showed an increase of general echo which was suggestive for congenital or parenchymal abnormalities. Dialysis was ordered but the patient's family declined. The Image of the infant brain in axial cut using MRI 1.5 Tesla marked molar tooth sign (MTS) (Figure 1). The schematic view is also given (Figure 2). Conservative treatment including Scholl, anticonvulsant solution, (30 cc daily), ferrous sulfate (20 drops), calcium tablets carbonate (2 per day) and phenobarbital (5 mg/kg/bw divided in two parts) was administered for the patient. Diagnosis: Classic Joubert syndrome subtype: CORS (11q12.2 TMEM216) Joubert syndrome is a rare autosomal recessive disorder affecting the cerebellum and characterized by abnormal respiratory pattern and eye movements, hypotonia, ataxia, developmental retardation with neuropathological defects of cerebellum and brainstem comprising inherited hypoplasia or aplasia of vermis. This clinical entity is possibly underreported with a prevalence of less than 1 per 100,000. This syndrome is prototype of congenital vermian hypoplasia. Treatment for Joubert syndrome is symptomatic and supportive. Infant stimulation and physical, occupational, speech and hearing therapy may benefit some patients. Infants with abnormal breathing patterns must be monitored.