Bojnurd University of Medical science

Bojnūrd, Iran

Bojnurd University of Medical science

Bojnūrd, Iran
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Hassan V.,Mashhad University of Medical Sciences | Hassan S.,Mashhad University of Medical Sciences | Seyed-Javad P.,Bojnurd University of Medical science | Ahmad K.,Mashhad University of Medical Sciences | And 3 more authors.
Medical Journal of Malaysia | Year: 2013

Inflammatory bowel diseases (IBDs) are immune mediated diseases affecting the gastrointestinal tract. Several environmental factors in concert with genetic susceptibilities can trigger IBDs. Recently, one of the important environmental factors contributing to the development of autoimmune diseases is vitamin D (VitD) deficiency. Furthermore, some new evidence points to VitD deficiency and its receptor dysfunction as an underlying factor for the emergence experimental IBDs. The aim of the current study was to evaluate the correlation between serum 25(OH)D concentrations and IBD activity in patients with ulcerative colitis or Crohn's disease. Sixty patients with confirmed diagnosis of IBD were recruited for a cross sectional study. Most of the identified confounders affecting serum VitD concentrations were excluded. Disease activity was assessed using validated questionnaires, including Truelove for Ulcerative Colitis and Crohn Disease Activity Index (CDAI) for Crohn disease. Serum 25(OH)D concentrations were determined by chemiluminescent assay. Serum 25(OH)D≤10 (ng/ml) was considered as VitD deficiency and 11≤25(OH)D<29(ng/ml) as VitD insufficiency. Mean serum 25(OH)D value was 13.1 ± 11.1(ng/ml) in IBD patients. Almost 95% of patients were vitamin D insufficient or deficient. Forty one percent of IBD patients had active disease. VitD deficiency was not associated with IBD activity (p=0.23). However, VitD deficiency was significantly associated with a history of IBD related intestinal surgery (p=0.001). In conclusion, this cross-sectional prospective study suggested that there is no association between vitamin D deficiency and disease activity in a relatively small number of IBD patients in a short period of time.


Yekrangi A.,Islamic Azad University | Afrasiabi M.,University of Sistan and Baluchestan | Langari A.,Bojnurd University of Medical science | Hafshejani M.K.,Shahrekord University of Medical Sciences
Journal of Engineering and Applied Sciences | Year: 2014

Rubber/Titanium oxide nanocomposites might be considered as potential materials in medical and industrial applications due to the flexibility of the polymer and antibacterial properties of nanometric additive. In this research paper, the morphology and physical properties of nanocomposites based on Styrene Butadiene rubber have been investigated in the presence of nano titanium oxide additive. The nanocomposites have been prepared by mechanical blending using two roll mills. Nano Titanium oxide particles have been added to Styrene Butadiene rubber and the abrasion and thermal properties have been surveyed. Optical microscopic observation and scanning electron microscopic pictures have been used to investigate the morphology of nanocomposites based on rubber. Abrasion test results showed that the nano Titanium oxide particles could enhance the abrasion resistance of Styrene Butadiene rubber matrix due to appropriate properties of nano Titanium oxide particles. © 2006-2014 Asian Research Publishing Network (ARPN).


Shokuhifard R.,Islamic Azad University at Andimeshk | Ojakeh M.,Islamic Azad University at Dezful | Langari A.,Bojnurd University of Medical science | Hafshejani M.K.,Shahrekord University of Medical Sciences
ARPN Journal of Engineering and Applied Sciences | Year: 2014

Carbon nanotube (CNT) is one the most important nano-elements in fabrication of probes, sensors and other ultrasmall devices that have a wide usage in engineering and medicine. In this paper, the deflection and instability of a freestanding CNT probe/sensor in the vicinity of the graphene layers are investigated. A nano-scale continuum model in conjunction with Euler beam theory is employed to obtain nonlinear constitutive equation of freestanding CNT by considering the effect of Casimir dispersion force. A numerical finite difference method is employed to solve the nonlinear governing equation. © 2006-2014 Asian Research Publishing Network (ARPN).


Keshavarzi Z.,Bojnurd University of Medical science | Haddad M.K.,Kerman Medical University
Journal of Babol University of Medical Sciences | Year: 2012

BACKGROUND AND OBJECTIVE: Gastrointestinal function disorder was seen frequently in traumatic patients. In regarding to useful role of sexual hormones on gastrointestinal motility disorders, the aim of this study was to evaluate the effects of female sexual hormones on the gastric motility following TBI induction in female rats. METHODS: This experimental study was done on the 63 Wistar female rats (200-250 g) that they were divided to 9 groups involving: intact, OVX (ovariectomized rat), Sham+OVX, TBI (intact rats under TBI), TBI+OVX (ovariectomized rats under TBI) and OVX+TBI rats treated with vehicle, estradiol, progesterone or estradiol+ progesterone combination. Diffuse TBI was induced by Marmarou method. Intragastric pressure, contraction frequency and motility index were measured 5 days after the TBI induction by power lab device and balloon technique. FINDINGS: The intragastric pressure (IGP) was decreased in OVX (6.98 ± 0.3), TBI (7.34 ± 0.3) and TBI+OVX (6.04 ± 0.1) (p<0.01) and treatment with estradiol (7.58 ± 0.5) and estradiol+progesterone (7.92 ± 0.5) increased IGP (p<0.01). Motility index also was decreased following TBI and estradiol+progesterone combination significantly increased the motility index (4.1± 0.4) (p<0.05, p<0.01). CONCLUSION: The main effects of brain trauma and sexual hormones were done principally by changing of gastric smooth muscle contraction activity not frequency of gastric contractions.


Khaksari M.,Kerman Medical University | Keshavarzi Z.,Kerman Medical University | Gholamhoseinian A.,Kerman Medical University | Bibak B.,Bojnurd University of Medical science
Canadian Journal of Physiology and Pharmacology | Year: 2013

The purpose of this study was to evaluate the effect of female sexual hormones on intestinal and serum cytokines following traumatic brain injury (TBI). Adult female rats were ovariectomized and distributed among the following 9 groups: (i) sham trauma, (it) TBI (Marmarou's method), (tit) vehicle (dimethylsulfoxide) treated, (iv) estrogen (E2) treated, (v) progesterone (P) treated, (vi) treated with E2+P, (vii) propylpyrazole triol (PPT) treated, (viii) diarylpropionitrile (DPN) treated, and (ix) control. PPT and DPN are estrogen receptor aand β agonists, respectively. Serum and intestinal levels of interleukin (IL)-1β were increased by TBI (P < 0.001). The level of intestinal IL-1β was increased in the group treated with E2 (P < 0.001). There was a reduction in serum IL-lβ (P < 0.01) and an increase in intestinal IL-lβ level (P < 0.001) in the PPT-treated group compared with the vehicle-treated group. TBI reduced serum IL-6 (P < 0.01) and increased intestinal IL-6 (P < 0.001). Serum IL-6 was increased in the group treated with E2 (P < 0.001), P (P < 0.001), E2+P (P < 0.01), and DPN (P < 0.001) after TBI; however, intestinal IL-6 was higher in the E2-treated group compared with the vehicle-treated group (P < 0.01). Intestinal tumor necrosis factor a (TNF-α) was increased by TBI (P < 0.001). Progesterone decreased serum TNF-α (P < 0.01). Intestinal TNF-α in the E2 (P < 0.01), E2+P (P < 0.001), and PPT (P < 0.001) treatment groups was less than in the vehicle-treated group. In conclusion, estrogen influences the intestinal levels of proinflammatory cytokines, in particular TNF-α, mediated through estrogen receptor a.


Keshavarzi Z.,Bojnurd University of Medical science | Khaksari M.,Kerman Medical University
Journal of Pharmacy and Bioallied Sciences | Year: 2015

The aim was to assess the alteration of gastric function and barrier function of gastrointestinal (GI) tract following diffuse brain injury in varying ovarian hormone status. Materials and Methods: Diffuse traumatic brain injury (TBI) was induced by Marmarou method. Rats were randomly assigned into 10 groups: Intact, sham + ovariectomized female (OVX), TBI, TBI + OVX, vehicle, estradiol (E2), progesterone (P), E2 + P, estrogen receptor alpha agonist and estrogen receptor beta agonist (DPN). Endotoxin levels were measured using enzyme-linked immunosorbent assay method. All the parameters were measured 5 days after TBI. Results: Intragastric pressure was significantly decreased in TBI as compared to the intact group (P < 0.001) and this was lower in TBI group versus TBI + OVX group (P < 0.05). Pretreatment with steroid hormones and their agonists did not have any effect on the gastric pressure compared to TBI + OVX or vehicle groups. Inflammation, congestion, ulcer and erosion were seen in the TBI rats. All treatment groups worsen the tissue condition so that the presence of thrombosis also was seen. The trauma induction did not have any effect on the serum and intestinal endotoxin levels. DPN had caused a significant reduction in serum levels of endotoxin compared with OVX + TBI group (P < 0.05). Conclusion: Pretreatment with sexual steroids is not useful in the treatment of GI dysfunction induced by TBI. The treatment with all sexual female hormones worsens the gastric tissue condition. Furthermore, the applied weight was not enough for releasing of endotoxin. It seems that estrogen reduced the endotoxin levels by estrogen beta receptor.


PubMed | Bojnurd University of Medical science and Kerman Medical University
Type: Journal Article | Journal: Journal of pharmacy & bioallied sciences | Year: 2015

The aim was to assess the alteration of gastric function and barrier function of gastrointestinal (GI) tract following diffuse brain injury in varying ovarian hormone status.Diffuse traumatic brain injury (TBI) was induced by Marmarou method. Rats were randomly assigned into 10 groups: Intact, sham + ovariectomized female (OVX), TBI, TBI + OVX, vehicle, estradiol (E2), progesterone (P), E2 + P, estrogen receptor alpha agonist and estrogen receptor beta agonist (DPN). Endotoxin levels were measured using enzyme-linked immunosorbent assay method. All the parameters were measured 5 days after TBI.Intragastric pressure was significantly decreased in TBI as compared to the intact group (P < 0.001) and this was lower in TBI group versus TBI + OVX group (P < 0.05). Pretreatment with steroid hormones and their agonists did not have any effect on the gastric pressure compared to TBI + OVX or vehicle groups. Inflammation, congestion, ulcer and erosion were seen in the TBI rats. All treatment groups worsen the tissue condition so that the presence of thrombosis also was seen. The trauma induction did not have any effect on the serum and intestinal endotoxin levels. DPN had caused a significant reduction in serum levels of endotoxin compared with OVX + TBI group (P < 0.05).Pretreatment with sexual steroids is not useful in the treatment of GI dysfunction induced by TBI. The treatment with all sexual female hormones worsens the gastric tissue condition. Furthermore, the applied weight was not enough for releasing of endotoxin. It seems that estrogen reduced the endotoxin levels by estrogen beta receptor.


Boostani R.,Mashhad University of Medical Sciences | Derakhshan S.,Bojnurd University of Medical science
Caspian Journal of Internal Medicine | Year: 2012

Background: Tramadol is a synthetic analgesic. Seizures have been reported in patients receiving this drug. In this study we evaluated the correlation between tramadol consumption and seizure occurrence. Methods: Twenty-eight subjects with a history of tramadol consumption and seizure were studied. Electroencephalograms (EEG) were performed in the first 24 hours and again one week later. Subjects were followed up for a mean of 18 months after the initial attack. Results: In the 28 subjects, 26 (92.8%) were males and 2 (7.2%) were females. The mean age of the subjects was 28.4 years. Thirteen patients had abused more than 400 mg/day of tramadol. Sixteen subjects concomitantly used other drugs. The seizures occurred within the first 24 hours of tramadol intake in 25 of the subjects. The first EEG was abnormal in 12 cases, but the second EEG was abnormal in only one case. Neuroimaging of only one subject displayed patchy white matter lesions. Conclusion: In conclusion, the neurotoxicity of tramadol commonly manifests as generalized tonic clonic seizures most frequently within 24 hours after tramadol intake and was more common in subjects concomitantly consuming alcohol, illicit drugs, antipsychotics, or anti-depressants.


Javidi S.,Bojnurd University of Medical Science | Razavi B.M.,Mashhad University of Medical Sciences | Hosseinzadeh H.,Mashhad University of Medical Sciences
Phytotherapy Research | Year: 2016

Neuropharmacology is the scientific study of drug effect on nervous system. In the last few years, different natural plants and their active constituents have been used in neurological therapy. The availability, lower price, and less toxic effects of herbal medicines compared with synthetic agents make them as simple and excellent choice in the treatment of nervous diseases. Nigella sativa, which belongs to the botanical family of Ranunculaceae, is a widely used medicinal plant all over the world. In traditional and modern medicines several beneficial properties have been attributed to N. sativa and its main component, thymoquinone (TQ). In this review, various studies in scientific databases regarding the neuropharmacological aspects of N. sativa and TQ have been introduced. Results of these studies showed that N. sativa and TQ have several properties including anticonvulsant, antidepressant, anxiolytic, anti-ischemic, analgesic, antipsychotic, and memory enhancer. Furthermore, its protective effects against neurodegenerative diseases such as Alzheimer, Parkinson and multiple sclerosis have been discussed. Although there are many studies indicating the beneficial actions of this plant in nervous system, the number of research projects relating to the human reports is rare. Copyright © 2016 John Wiley & Sons, Ltd. Copyright © 2016 John Wiley & Sons, Ltd.


PubMed | Bojnurd University of Medical Science and Mashhad University of Medical Sciences
Type: Journal Article | Journal: Phytotherapy research : PTR | Year: 2016

Neuropharmacology is the scientific study of drug effect on nervous system. In the last few years, different natural plants and their active constituents have been used in neurological therapy. The availability, lower price, and less toxic effects of herbal medicines compared with synthetic agents make them as simple and excellent choice in the treatment of nervous diseases. Nigella sativa, which belongs to the botanical family of Ranunculaceae, is a widely used medicinal plant all over the world. In traditional and modern medicines several beneficial properties have been attributed to N. sativa and its main component, thymoquinone (TQ). In this review, various studies in scientific databases regarding the neuropharmacological aspects of N. sativa and TQ have been introduced. Results of these studies showed that N. sativa and TQ have several properties including anticonvulsant, antidepressant, anxiolytic, anti-ischemic, analgesic, antipsychotic, and memory enhancer. Furthermore, its protective effects against neurodegenerative diseases such as Alzheimer, Parkinson and multiple sclerosis have been discussed. Although there are many studies indicating the beneficial actions of this plant in nervous system, the number of research projects relating to the human reports is rare. Copyright 2016 John Wiley & Sons, Ltd.

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