Carbamazepine has been shown to exert analgesic effects in clinical and experimental pain situation. This study was conducted to evaluate its potential peripheral antinociceptive effects and the possible involvement of L-arginine/NO/cGMP/KATP channel pathway and PPARγ receptors in an animal model of pain. The antinociceptive effect induced by intraplantar administration of carbamazepine (100–1 000 μg/paw) was assessed using the formalin test in rats. To evaluate the involvement of L-arginine/NO/cGMP/KATP channel pathway in the antinociceptive action of carbamazepine, rats were pre-treated intraplantarlly with L-arginine (a nitric oxide precursor, 100 and 200 μg/paw), L-NAME (NOS inhibitor, 50 and 100 μg/paw), methylene blue (guanylyl cyclase inhibitor, 100 and 200 μg/paw), glibenclamide (KATP channel blocker, 100 and 200 μg/paw), and diazoxide (400 μg/paw). Moreover, to investigate the possible involvement of PPARγ receptors, pioglitazone (10 μg/paw; a PPARγ agonist) alone or in combination with GW9662 (3 μg/paw; a PPARγ antagonist) were pre-treated with carbamazepine. The local ipsilateral, but not contralateral, administration of carbamazepine into the hind paw produced dose-related analgesia during both early and late phases of formalin test. Moreover, pre-treatment with L-NAME, methylene blue, and glibenclamide dose-dependently prevented carbamazepine (300 μg/paw)-induced antinociception in both phases of the test. In addition, administration of L-arginine and diazoxide before the sub-effective dose of carbamazepine (100 μg/paw) produced an antinociceptive effect. Also, antinociception induced by carbamazepine plus pioglitazone (10 μg/paw) was blocked by GW-9662 in both phases of the test. In conclusion, carbamazepine induced a peripheral antinociceptive effect through PPARγ receptors and L-arginine/NO/cGMP/KATP channel pathway, with potential for a new topical analgesic drug.
Objectives: The etiology of Alzheimer’s disease is supposed to involve environmental exposure and genetic vulnerability. The present study aimed to assess the association between Alzheimer’s disease and its risk factors. Methods: We conducted a case-control study of 95 Alzheimer’s disease patients and 98 matched controls. All participants (case and control groups) were examined by mini-mental state examination. This information was collected by a risk factor questionnaire from January to June 2019. Data were analyzed using logistic regression analysis via SPSS-22 software. Results: The findings revealed the effect of risk factors' odds ratios on the occurrence of Alzheimer’s disease by logistic regression analysis. Sex (female), chronic disease, loneliness or being single, and family history showed positive associations with AD, whereas daily physical exercise, religious beliefs, high level of social communication, and male sex had negative associations with AD development (P < 0.05). Conclusions: The study highlighted the difficulty of etiology and recommended that the effective interventions for social support of older people, psychological condition, chronic disease, and lifestyle may be promising preventive policies.
Background: In Iran, the presence of the patient’s family is forbidden at coronary care units (CCUs), and the patient will be hospitalized without the presence of the family at these units. The issue of being away from family is one of the main causes of tenseness in patients of CCUs and has some side effects, such as isolation and seclusion, after discharge. Objectives: The present study aimed to investigate the effect of face-to-face visiting and behind-the-glass visiting on patients’ anxiety at CCUs. Methods: This quasi-experimental study was performed on 80 random patients at the CCU of Dr. Ganjavian hospital, Dezful, Iran, by considering inclusion and exclusion criteria. The visiting time in both groups was 20 minutes, and the questionnaires were collected by the researchers from patients 10 minutes before and after visiting. Results: The average obvious and hidden anxiety in patients significantly reduced after the visit. Anxiety in the group of face-to-face visiting was more reduced than in the other group [face-to-face (P = 0.0008) and behind-the-glass (P = 0.02)]. Conclusions: Face-to-face visiting is an appropriate method to reduce anxiety in the patients of CCUs. It is suggested to adopt this method to improve the visits in this unit.
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