Showing 24 results for Nahid
Firooz Esmaeilzadeh, Nahid Hatam , Zhila Esmaeilzadeh , Abdolhalim Rajabi , Meysam Anami , Sajad Vahedi , Hossien Mirzaei,
Volume 72, Issue 9 (December 2014)
Abstract
Background: The rabies is a deadly disease and if its symptoms break out in a person, he will certainly die. However, the deaths caused rabies can be prevented by post-exposure prophylaxis (PEP).
Methods: In this study, subjects were recruited through census and with respect to in-formation which gathered from Fars Province health centers, Pasteur institution and previous studies In Iran. The mortalities for age groups and by sex type have been cal-culated. The decision tree model using probabilities, which the effectiveness of PEP treatment after getting bitten by an animal suspected, persons to receive specified. Dis-ability adjusted life year score (DALY) was applied to estimate the DALYs saved from PEP. In this study it was assumed that if a person suffering with rabies, a few days af-ter the onset of symptoms, death is compulsory. Therefore YLD rabies was considered zero. Finally, to increasing the accuracy and because inherent uncertainty of the data, and the increase the power of analysis, one-way sensitivity analysis was used.
Results: From March 2011 to March 2012, in Fars Province, total cases of animal bites were reported and received PEP treatment. The cases were 5394 (75.85%) male and 1717 (24.15%) female. PEP generally prevented from 177.076 deaths which 134.096 (75.72%) were men and 42.98 (24.27%) of them were women. The age distribution of suspected animal bites in youth more than adults, and in men higher than women. Also due to prevented mortality caused by PEP, it is prevented from 4455.71 DALYs. Based on the sensitivity analysis DALY prevented, except for dogs and cats, there was no change in the other animals.
Conclusion: The implementation of PEP for animal bitten people remarkably reduced the burden of disease in community. Calculations with primitive cost estimations im-plicitly revealed that this intervention is a most cost-effectiveness program.
Rouhangiz Babakhanianzadeh, Nahid Masoudian , Amirnader Emami Razavi, Gholam Basati ,
Volume 73, Issue 7 (October 2015)
Abstract
Background: Low density lipoprotein (LDL) particles have shown to be heterogeneous structures with distinctive electrical charges. Alteration in the fatty acids content of the LDL particles is known to affect their structural features, electrical charges, and ultimately physiologic properties and, in this way, may play a role in the pathology of coronary artery disease (CAD). On the basis of evidences, in the present study, the relationship of fatty acids content of LDL particles and their electrical charge was assessed in patients with CAD in comparison with control subjects. Methods: In the current case- control study, from subjects who referred to the Mostafa Khomeini Hospital in Ilam during a time period from December 2013 to October 2014, 40 CAD patients and 40 control subjects were selected based on the clinical and angiographic parameters. The fatty acids content and electrical charges of LDL particles were measured by using a gas chromatography system, equipped with a flame ionization detector GC-FID, Acme 6000 M (Young Lin Co., Korea) as well as a Zetasizer (Malvern Instruments Ltd., UK), respectively. Results: In the present study, CAD patients and control subjects were matched for age, sex, and body mass index (BMI). The electrical charge amounts of LDL particles in the patients group was significantly lower than those in the control subjects (P= 0.0001). There was an inverse correlation between the electrical charge amounts of the LDL particles and the saturated fatty acids as well as linoleic acid contents of them in CAD patients group. However, we found a direct correlation between the unsaturated fatty acids (monounsaturated fatty acids and some of the polyunsaturated ones) content of the LDL particles and their electrical charge amounts (P= 0.02). Conclusion: Results of the present study demonstrated that the increased saturated fatty acids as well as the linoleic acid contents of the LDL particles are associated with decreased electrical charge amounts of these particles and this situation may engage in pathogenesis of CAD.
Nahideh Pazhohan , Azar Pazhohan , Nasrin Niromand , Mahbod Ebrahimi ,
Volume 73, Issue 10 (January 2016)
Abstract
Background: Receptivity of endometrium has a critical role in the establishment of pregnancy after embryo transfer in the treatment process of infertile couples. As the glycoprotein CA-125 is a product of human endometrium and is measurable in the peripheral circulation, it is investigated whether it might serve as an indicator of endometrial receptivity and predictor of pregnancy following Intracytoplasmic sperm injection (ICSI).
Methods: In an observational diagnostic study, over a twelve-month period (from August 2013 to July 2014), all couples with male-factor infertility who attended to infertility clinic of Moheb Yas Hospital, Tehran and were candidate of performing ICSI, were invited to participate in the study. Based on the inclusion criteria of study, 64 women were eligible to take part in the study. They were assessed for serum CA-125 levels on the day of human chorionic gonadotropin (HCG) administration and also on the day of oocyte retrieval. After ICSI, the possibility of pregnancy was assessed by measuring serum concentration of &beta-HCG on 14 days after embryo transfer and also by visualizing the gestational sac by trans-vaginal ultrasound examination on four to five weeks after transfer. The pregnancy rate was compared between those with normal and high CA-125 levels.
Results: Among the subjects, 15 patients (23.4%) had high CA-125 levels, and totally 19 patients (29.7%) experienced pregnancy. Among those with normal and high CA-125 levels, 16 patients (32.7%) and 3 subjects (20%) experienced pregnancy, respectively, that showed no statistically significant difference according to Chi-square test (P=0.348). Also, according to the Fisher’s exact test, there was no correlation between CA-125 levels and the rate of pregnancy on the basis of body mass index (BMI).
Conclusion: Totally, according to the obtained results in current study, it may be concluded that serum CA-125 levels has no prognostic value in prediction of the outcomes of ICSI among infertile couples with male-factor infertility.
Roshan Nikbakht , Mahvash Zargar , Zeinab Barekati , Razieh Mohammad Jafari , Nahid Shahbazian , Mojgan Barati ,
Volume 73, Issue 11 (February 2016)
Abstract
Background: Polycystic ovary syndrome (PCOS) is the most common endocrine disorders in reproductive age women. These women confer with complications of pregnancy such as gestational diabetes, pregnancy-induced hypertension, preeclampsia and neonatal complications such as small for gestational diabetes (SGA) are more prevalence in women with PCOS. The aim of this study was to evaluate the incidence of complications associated with PCOS in pregnant women.
Methods: This was an observational and prospective study which recruited 205 pregnant women with PCOS from Imam Khomeini Hospital, Ahvaz Jundishapur University of Medical Sciences (AJUMS) between 2013 and 2014. Inclusion criteria were women with PCOS and gestational age over 20 weeks. The demographic and clinical variables including mother's age, body mass index (BMI) and conditions of pregnancy including pregnancy-induced hypertension, preeclampsia, gestational diabetes and overt diabetes and neonatal complications such as preterm labor (PTL), SGA and intrauterine fetal death (IUFD) were recorded.
Results: The prevalence of hypertension disorders, preeclampsia, gestational diabetes and overt diabetes were observed in 44 (21.5%), 18 (8.8%), 29 (14%) and 22 (11%) patients, respectively. The history of familial diabetes was shown in 28 patients (13.6%). In addition, the history of pregnancy induced hypertension was reported in 25 patients (12.1%). Only 6 patients (2.9%) had history of gestational diabetes. Among neonatal complications due to PCOS, SGA with 15.3% and then PTL with 12.6% had highest prevalence. IUFD was shown only in 2 patients.
Conclusion: Pregnant women with PCOS are at the higher risk for pregnancy and neonatal complications. Specifically, these women should be evaluated for pregnancy induced hypertension during pregnancy than others.
Maryam Esmaili , Nahid Tahan , Seyed Mojtaba Miri , Ali Montazeri , Alireza Akbarzade Bagheban ,
Volume 75, Issue 2 (May 2017)
Abstract
Background: Low back pain is one of the most important causes of disability among people around the world. Although only 2-5% of low back pain disorders resulting from herniation of lumbar intervertebral discs but surgery for lumbar disc herniation is a common procedure. The aim of this study was to determine the relation between some bio-psycho-social variables and treatment outcomes in patients who undergo first time single-level lumbar discectomy.
Methods: This is a prospective observational analytic study comprised 100 patients (age range 18-73 years) underwent single-level lumbar disc surgery. The patients who met our inclusion criteria and were willing to participate in the study were recruited from the neurosurgery ward of Logman and Imam Khomaini hospitals in Tehran, Iran, between October 2015 and March 2016. The patient completed SF-36 quality of life Questionnaires before, one and two months after surgery.
Results: In comparison to standard values, before the surgery patients had significantly lower baseline SF-36 (36-Item Short Form Survey) Questionnaire value in all 8 domains. The role limitations due to physical health had greatest impact on quality of life. At the eight weeks’ follow-up SF-36 scores showed significant improvement in both physical and mental scales. Age had no significant impact on mental scales of weeks’ Questionnaire but in age less than 30 years there was a positive relation between the patient’s age at surgery and physical aspects of quality of life. Although there was no significant difference in physical aspects of SF-36 Questionnaire between males and females but males had a significantly higher mean mental health score than females after surgery. Smokers had lower value of mental scales of SF-36 Questionnaire than in nonsmokers.
Conclusion: The result of this study showed that surgery for lumbar disc herniation had a great impact on both physical and mental scales of SF-36 Questionnaire two months after surgery. Factors such as age, sex, smoking and psychological factors can play the role of predictor for patient’s outcomes after lumbar disc surgery.
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Davood Azimpour , Nahid Tahan , Fereshteh Poursaeed , Farideh Dehghan Manshadi , Erfan Ghasemi ,
Volume 75, Issue 5 (August 2017)
Abstract
Background: Spasticity is a clinical deficit of upper motor neurons lesions that presented immediately or at delayed times after lesions and occurs in about 38% of stroke patients. Extracorporeal shock wave therapy (ESWT) has been recently reported as a safe and effective method for reducing spasticity in stroke patients. In the present study, we sought to investigate the impact of the ESWT on post stroke spasticity using a meta-analysis method.
Methods: All primary reports of spasticity indexed in PubMed, MEDLINE, Science Direct, Scopus and search engine of Google Scholar from January 2000 to December 2016 were searched. The following terms were used as keywords: Spasticity, muscle hypertonicity, ESWT, stroke and hemiplegia. Any report was included if it met the following criteria: involving clinical trials, full-version availability, and being written in english. Two reviewers selected articles independently and reviewed the studies considering quality and eligibility, and then they extracted general information on objectives, design, participants, and outcomes. The methodologic quality of each study was assessed using the Pedro Scale. In the statistical analyses, we considered two outcomes; Modified Ashworth scale (MAS) grade and passive rang of movement (PROM). The meta-analysis was done using random effect model in Stata, version 11 (Stata Corp., TX, USA).
Results: Eleven studies within a total of 261 patients were included in this review. In seven studies the shock waves were applied to the upper limb muscles, and in four other studies, the effects of ESWT on the spasticity of the lower limb muscles were assessed. Immediately after applying the ESW, MAS grade was significantly decreased in comparison to the baseline values. (Standardized mean difference [SMD], -1.62; 95% confidence interval [CI], -2.2 to -1.04). The PROM was significantly increased immediately after ESWT in comparison to the baseline values (SMD, 3.23; CI 95%, 1.35 to 5.12).
Conclusion: The results of this study showed that ESWT can immediately improve the spasticity and increased PROM, but it seems that the mechanism of action of shock waves on spasticity is still unclear. Further clinical trial studies with higher methodological quality should be recommended. |
Fateme Noorian Zavareh, Maryam Ameri , Roya Kordrostami , Nahid Dadashzade ,
Volume 75, Issue 8 (November 2017)
Abstract
Background: Sex determination from human remains is a challenge for forensic experts. Many studies have shown that the finger length ratios might be characteristic for sexual dimorphism. The aim of this study was to determine sexual dimorphism in finger length ratios among Iranian population.
Methods: The study group comprised of a random sample of 100 healthy people without congenital or acquired skeletal malformation or other obvious diagnosed disease, with the age range from 19 to 35 years in Tehran and Kashan cities, Iran, from March to the end of August of 2017. The number of male and female samples were equal. The lengths of second (2D), third (3D), forth (4D) and fifth (5D) finger of both hands were measured from the basal crease of the finger proximal to the palm to the tip of the finger using a ruler with a precision of 0.01 millimeters. Exploratory analysis were performed. Different finger ratios including 2D:3D, 2D:4D, 2D:5D, 3D:4D, 3D:5D and 4D:5D were calculated.
Results: The mean ratio of right fingers R 2:3, 2:4, 2:5, 3:4, 3:5, 4:5 and mean ratio of left fingers L 2:3, 2:4, 2:5, 3:4, 3:5, 4:5 were not equal in the groups compared. The index and ring finger ratio is found to be higher in males than females. Ratios of L 2:4, 3:4 and R 2:3, 2:4, 2:5 showed higher values in males.
Conclusion: Our results suggest that the 2D:4D ratio is the most decisive ratio which can demarcate between male and female in Iranian population. It may prove useful to determine the sex of an isolated hand in medicolegal examinations.
Mahboobeh Sadat Hosseini , Mohammad Javad Bahoosh , Gholamhossein Alishiri , Nahid Khalili , Habib Yaribeygi ,
Volume 75, Issue 11 (February 2018)
Abstract
Background: The prevalence of diabetes mellitus due to existence of various factors is growing rapidly. The insulin resistance phenomenon is one of the main underlying causes of this disease, due to various reasons such as a decrease in serum levels of vitamin D3. In this study, we evaluated the relationship between plasma level of vitamin D3 and some other main plasma factors.
Methods: This clinical trial study carried out on type 2 diabetes mellitus subjects who referred to diabetes clinic of Baqiyatallah Hospital in Tehran city during June to September 2016. First demographic data of all patients were collected. Then the blood samples for evaluation of blood glucose, HbA1c, triglyceride, cholesterol, HDL, LDL and vitamin D3 were obtained. Based on plasma level of vitamin D3, diabetic subjects were divided into two separate treatment groups (with and without vitamin D3 deficiency) and then above-mentioned factors were compared between these two groups. Afterward, in group with vitamin D3 deficiency, treatment by vitamin D3 triggered (50000 unit per week for eight weeks orally) until plasma level of vitamin D3 reached above 30 ng/mL. Then, treatment continued by vitamin D3 (50000 Unit per week orally) and calcium (1.5 g/day PO) until 60 days. Finally, the patients were evaluated about fasting blood glucose, HbA1c, HDL, LDL and blood pressure.
Results: In total, 187 subjects (99 men and 88 women) were evaluated in this study. Total hypovitaminose incidence was 0.65% which was higher in subjects with higher body mass index (BMI). Serum content of vitamin D3 and calcium, significantly changed the values of fasting blood sugar (FBS), HbA1c, HDL and TG, but has no significant effects on other factors.
Conclusion: Our results clearly revealed that hypovitaminose vitamin D3 is one of the main factors that can leading to rise in plasma glucose and dyslipidemia occurrence. Also, our data are demonstrated that treatment by vitamin D3 and calcium can modify fasting blood glucose and dyslipidemia in type 2 diabetes mellitus subjects.
Nahid Arefi Lisar , Parivash Kordbacheh , Sasan Rezaie , Mahin Safara , Roshanak Daie Ghazvini , Heidar Bakhshi , Zahra Omidvar Jalali ,
Volume 75, Issue 12 (March 2018)
Abstract
Background: Vaginal candidiasis is common in during pregnancy. It may lead to complications like abortions, premature birth, low birth weight, chorioamnionitis and fungal systemic neonatal infection. The aim of present study was identification of Candida species by mycological and molecular methods in pregnant women with vaginal candidiasis.
Methods: This cross-sectional study was performed on 80 pregnant women with or without clinical symptoms of vulvovaginal candidiasis referred to Shahid Noorani Talesh Hospital, Gilan University of Medical Sciences, Iran, from April to December 2015 (8 months). All specimens were examined by direct microscopy and culture on CHROMagar Candida medium for isolation and differentiation of major clinical-significant Candida species (spp.). Cultured media were incubated at 35 °C for 48 hours and evaluated based on color and number of grown colonies. If no growth was observed, the media were incubated for several additional days. Subcultures were done on Sabouraud dextrose agar (Merck, Germany) and Corn meal agar with Tween 80 media (Micromedia, Hungary) for further study. Identification of Candida spp. carried out by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method.
Results: In this study, vulvovaginal candidiasis was observed in 20 (25%) patients. Twenty-two isolates were obtained from culture of specimens on CHROMagar Candida medium (Paris, France). The most common isolated species was Candida albicans 16 (72.8%) and followed by Candida glabrata 5 (22.7%), Candida tropicalis 3 (13.6%) and Candida krusei 1 (4.5%) cases. Two patients had mixed infection with 2 different Candida species (C. albicans and C. glabrata) While using PCR-RFLP method, the Candida species were identified as 13 (59.1%) Candida albicans, 5 (22.7%) Candida glabra, 3 (13.6%) Candida tropicalis and 1 (4.5%) Candida krusei cases, respectively. In direct examination were seen yeast budding cells and pseudohyphae in 8 culture positive specimens. In the present study, results of conventional mycological method in differentiation of Candida spp. were consistent with molecular results in 80% of cases. There was also significant correlation between vulvovaginal candidiasis with clinical symptoms (P<0.0001), including diabetes mellitus (P<0.014), and taking antibacterial drugs (P<0.003) in pregnant women.
Conclusion: PCR-RFLP was able to identify correctly the Candida spp. as a complementary method.
Sahar Molzemi , Nahid Bolbolhaghighi , Mabobeh Sedighi , Mahbobeh Hadizade Bazaz , Gholam Hassan Vaezi ,
Volume 76, Issue 2 (May 2018)
Abstract
Background: Ritalin has properties similar to amphetamines and is therefore used arbitrarily. The purpose of this study was to investigate the effect of ritalin on liver histology and some liver enzymes in streptozotocin-safe and diabetic rats.
Methods: This experimental study was conducted in September 2012 at Islamic Azad University, Damghan Branch, Iran. In this research, 80 male rats were divided into 8 groups of 10 rats, which included: control group consisting of healthy rats and experimental groups 1, 2 and 3 (healthy+ritalin), which ritalin was taken as daily gavage 2.5 mg/kg, as well as control group (diabetic) and experimental group 4, 5 and 6 (diabetic+ritalin) after 2 months of diabetic ritalin at doses of 2.5 and 5 mg/kg as daily gavages up to 30 days. At the end of the prescribed day, the rats were anesthetized and after sampling from the heart, samples were taken from the liver and samples were delivered to the laboratory.
Results: Significant decrease in albumin levels of experimental groups compared to control group (P<0.05) and significant increase in aspartate transaminase and alanine aminotransferase enzymes in all experimental groups compared to control group was observed. The rat liver tissue study showed that rats that had been exposed to different doses of riatalin for 30 days, had fibrosis around the arteries (2+), moderate to weak fibrosis, and infiltration of inflammatory cells around the arteries. In experimental groups (diabetic+ritalin), hepatocyte columns have no regularity compared to control.
Conclusion: Oral consumption of ritalin caused a disturbance in the balance of liver enzymes and elevated serum albumin levels in healthy and diabetic rats. In the experimental groups (healthy ritalin) and (diabetic+ritalin), the higher the dose of the drug, the increased levels of liver enzymes as compared to the diabetic group. Severe degrees of tissue alteration are observed in the group (diabetic+ritalin). The texture of the tissue in the group (diabetic+ritalin) disappeared and appeared in the texture of the disintegration.
Maedeh Saremiyan , Nahid Tahan , Alireza Akbarzadeh Baghban,
Volume 76, Issue 2 (May 2018)
Abstract
Background: The previous studies showed that the odor can improve balance in the elderly. The purpose of the current study was to determine the effect of olfactory stimulus and its gender specific effect on the balance of young healthy people.
Methods: This is a pretest-posttest semi experimental study comprised 40 healthy volunteers (age range 18-73 years) from February 2016 through May 2017. The static balance test with one-leg standing time (OLST) and dynamic balance test using Biodex balance system to measure overall stability index (OSI), anterior/posterior stability index (APSI), medial/lateral stability index (MLSI) and overall limit of stability index (OLOSI) randomly were performed before and after application of lavender scant as the olfactory stimuli. A two-way repeated measurement ANOVA was used to assess the effect of olfactory stimulus conditions and gender on dynamic balance indexes (OSI, APSI, MLSI, and OLOSI). Since the distribution of the OLST was not normal, the generalized estimating equations (GEE) method was used. Significance level of P<0.05 was adopted for all comparisons. Means are reported±SD unless otherwise stated. SPSS software, version 21 (IBM SPSS, Armonk, NY, USA) was used to carry out all statistical analyses.
Results: The results showed that in comparison of the two different conditions (no odor/with odor), there was no significant difference in any of static and dynamic balance indexes (P>0.05). There were significant differences in relation to the interaction of the gender and odor in OSI (P=0.026), APSI (P=0.019). For gender, there were statistically significant differences in OSI (P=0.002, F (1,38) =11.649), APSI (P=0.001, F (1,38) =12.057), and MLSI (P=0.007, F (1,38) =8.228) for females.
Conclusion: Although there was no effect of odor on balance control of young healthy people, we found that the odor has gender specific effect. This is probably due to the more sensitivity of females to the odor.
Samane Khalkhali , Nahid Tahan , Alireza Akbarzadeh Baghban ,
Volume 76, Issue 8 (November 2018)
Abstract
Background: The transverse abdominis (TrA) muscle is one of the most important muscles that contribute to the stability of the lumbar spine. Strengthening of trunk muscles that have a significant role in trunk stability is very important in the field of professional sport, sport medicine and rehabilitation of patient with low back pain (LBP). Identifying the exercises that can improve the strength and endurance of these muscles in the efficient way is an important challenge in rehabilitation of LBP patients. The aim of this study was to investigate the effect of maximum voluntary isometric contraction of upper and lower limb muscles on ultrasonic thickness of the TrA muscle.
Methods: This is a pre-test post-test study. Thirty healthy young male subjects with mean age of 23 years were recruited from the university staff and student population (non probability sample). Ultrasonic thickness of the right and left TrA muscle (as an indirect measure of muscle activity) was taken at rest and during maximum isometric contraction of six muscle groups: shoulder and hip flexor, extensor and abductor muscles. Mixed-model ANOVA with repeated measures design were used to analyze data. To further analyses post hoc comparisons were performed with paired t-tests adjusted with the Bonferroni method. The significance level was set at P<0.05.
Results: The result showed that mean TrA thickness on right and left sides during maximum isometric contraction of the upper and lower limb muscles was significantly thicker than in resting position (P<0.001). The type of isometric contraction had a significant effect on the thickness of the TrA muscle on dominant side (P<0.05). As a result, the greatest change in the thickness of TrA muscle on dominant side was observed in hip isometric extension (P<0.05). There was a significant difference between the thickness of TrA during upper limb isometric contraction of dominant and non-dominant side (P<0.001).
Conclusion: Isometric contraction of upper and lower limb muscles especially in hip extension can increase the ultrasonic thickness of the transversus abdominis muscle.
Davood Azimpour , Nahid Tahan ,
Volume 77, Issue 4 (July 2019)
Abstract
Background: Spasticity is a common motor impairment in patients with stroke that not only has a negative impact on the patient’s quality of life but also has high economic burdens for society. Recently the application of shock wave therapy has attracted considerable attention as a safe and effective method in treatment of spasticity. The objective of the present study was to investigate the effect of application shock wave on spasticity of quadriceps femoris and triceps surae muscles in patients with stroke.
Methods: This was a quasi-experimental study on 15 stroke patients which were selected according to inclusion criteria between September 2016 and May 2017. This study was approved by the Ethics Committee of Shahid Beheshti University of Medical Sciences, Iran. The intervention included one session placebo shock wave and three sessions of true shock wave. Level of the spasticity was measured at quadriceps and gastrocnemius muscles by Ashworth scale (AS) and passive range of motion (PROM) of the knee and ankle joints was recorded by a manual goniometer (Enraf-Nonius Corp., Delft, Netherlands). Participants were assessed at baseline, after the placebo shock wave, after the final session of active shock wave and 4 weeks after the last treatment.
Results: Placebo shock wave had not significant effect on grade of AS of spastic muscles as well as PROM of knee and ankle joints. True shock wave induced a statistically significant reduction in AS of triceps surae and quadriceps femoris muscles and improvement of PROM of knee and ankle joints. The reduction in AS of triceps surae and improvement of ROM ankle joint continued 4 weeks after the last treatment. However, after 4 weeks, there was a significant reduction in the PROM of knee joint compared to the last session.
Conclusion: Three sessions shock wave therapy can reduce the tone of triceps surae and quadriceps muscles and improved the passive range of motion in the knee and ankle joints for up to 4 weeks, but these effects were not stable on the PROM knee joint.
Marzieh Kazerani , Nahid Jalalian Elahi , Najmeh Mohajeri , Kiarash Ghazvini , Sara Taghdisi , Mohmadreza Ghafghazi , Mahdieh Motaghi , Mahdieh Motaghi ,
Volume 77, Issue 7 (October 2019)
Abstract
Background: Molecular detection has recently been proposed by nucleic acid amplification, known as polymerase chain reaction (PCR). The aim of this study was to compare the diagnostic method of smear and polymerase chain reaction with culture in terms of sensitivity, specificity, positive and negative predictive value in the diagnosis of pulmonary tuberculosis.
Methods: In this cross-sectional study, sputum samples were collected from 58 patients with suspected pulmonary tuberculosis referred to Ghaem Hospital in Mashhad from the beginning of April 2017 to the end of March 2018. The samples were delivered to the laboratory in less than 72 hours. Patients were sampled for three times. Bronchoscopy and Broncho alveolar lavage were performed in patients who were unable to produce sputum. The smear test was reported by Ghaem’s Laboratory after 24 hours. In our study, the culture method was considered as the gold standard and the sensitivity and specificity of the PCR methods and smear were compared with it.
Results: Patients ranged in age from 18 to 89 years. Among 58 suspected pulmonary tuberculosis, the method of cultivation confirmed the presence of the disease in 25 cases (43.1%). However, with smear, the presence of the disease has been proved in 27 patients (46.6%) and with the method of PCR in 24 patients was (41.4%). Sensitivity of smear in the diagnosis of pulmonary tuberculosis was (100%), and its specificity was 93.9%, the positive predictive value of this test was (92.6%) and the negative predictive value was (100.0%). The sensitivity of the PCR method in diagnosis of pulmonary tuberculosis was 88.0% and its specificity was 93.9%. The positive predictive value of this was (91.7%) and the negative predictive value was (91.2%).
Conclusion: In this study, between the two methods of smear and polymerase chain reaction, the acid fast smear method was more sensitive to the diagnosis of pulmonary tuberculosis than the polymerase chain reaction and the specificity of both methods were the same.
Ali Sheidaei, Alireza Abadi, Fatemeh Nahidi, Farzaneh Amini, Farid Zayeri, Nafiseh Gazrani,
Volume 79, Issue 1 (April 2021)
Abstract
Background: Statistical models are used to investigate the relationship between variables in statistical studies. Considering the variety of statistical models, finding the most suitable model is a complex work. This study aimed to compare different models in the treatment of infants' colic and
the misspecification of specificity.
Methods: This randomized clinical trial was conducted on 100 infants with colic in the pediatric clinic of Amir Kabir Hospital in Arak, the intervention and control groups were randomly divided into two groups. The collection and analysis of the data was performed in 2016. After teaching massage to mothers of the intervention group, they were asked to perform massage on infants three times a day during the week. In the control group, mothers can relieve the symptoms of colic by shaking the infant. Parents recorded the number and severity of crying daily in the checklist. Finally, by using different models, R software, SAS, and goodness of fit, the best model was introduced.
Results: In the massage group, the mean crying intensity of infants with colic decreased from 5.01 units on the first day to 2.47 units on the seventh day. On the other hand, the difference in mean sleep time changed from 1.81 hours in favor of the shaking group on the first day to 1.26 hours in favor of the massage group on the seventh day. Also, the severity of crying in the infants of the massage group was significantly higher than the impulse group. Regarding the grace of marginal models, the first-order self-return correlation structure was the best grace and for some variables, the model had random effects with a gamma distribution for the random component.
Conclusion: Massage can reduce infants' colic. Statistically, in the case of a nonlinear model, the variance of estimates is more than estimated to be influenced by the misspecification of the correlation structure.
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Rojin Hemmati, Maryam Naseroleslami, Nahid Aboutaleb, Neda Mousavi Niri ,
Volume 79, Issue 5 (August 2021)
Abstract
Background: Heart failure is one of the most common cardiovascular disorders and is considered a chronic, progressive and debilitating disorder. The medical treatment of this disease is accompanied by many problems. Today, stem cells are being used increasingly to reduce the problems of heart failure treatments. Since pro-inflammatory cytokines play an important role in the prognosis and progression of cardiovascular disease, the present study aimed to investigate the effect of intravenous injection of human amniotic membrane mesenchymal stem cells on the levels of interleukins 4 and 12 in the serum of male rats in the heart failure model.
Methods: This is an experimental study that was conducted from October 2018 to May 2019 in the Physiology Research Center of Iran University of Medical Sciences. In this study, 28 male wistar rats (180-200 gr) were randomly divided into four groups: control group, heart failure group, heart failure group that received culture medium and heart failure group that received mesenchymal stem cells by intravenous injection. After 30 days, echocardiography was done and then serum levels of interleukin 4 and 12 were measured in these groups by Elisa test
.
Results: The results of this study showed that intravenous injection of human amniotic membrane mesenchymal stem cells into male rats with heart failure, improved echocardiographic parameters such as ejection fraction (EF) and fractional shortening (FS) in the cell injection group compared to the heart failure group (P<0.05). Also, the levels of inflammatory cytokines IL-4 and IL-12 were significantly reduced in the cell injection group compared to rats with the heart failure group (P<0.05).
Conclusion: Due to the improvement of cardiac parameters and the reduction level of inflammatory cytokines in this study, it seems that human amniotic membrane mesenchymal stem cells play an important role in improving heart failure by reducing the level of inflammation. |
Zeinab Khazaeeshir , Kobra Mirzakhani, Golnaz Sadat Ahmadinezhad, Fatemeh Sadat Naderi, Nahid Jahani Shoorab ,
Volume 81, Issue 1 (April 2023)
Abstract
Background: The rate of exclusive breastfeeding in Iran at the ages of 3 and 6 months is estimated to be 44% and 27%, respectively, which is still far from the optimal index of the World Health Organization until 2030 (70% in the first six months). In order to monitor breastfeeding counseling centers, which have been set up with the aim of promoting breastfeeding and supporting mothers who have problems with breastfeeding.
Methods: This is a descriptive-retrospective study and all the mothers who were referred to the Health and Treatment Center No. 2 in Mashhad between April 2019 and March 2019 were examined. This health center has two active counseling clinics and the collection of information is based on documents registered in offices and computers. The inclusion criteria for study were not having breast diseases, having an infant child, being able to read and write and living in Mashhad city. The exclusion criteria were also the unwillingness to participate in the study and the newborn suffering from diseases that are incompatible with breastfeeding. Therefore, census sampling was done. The data were analyzed using SPSS 16 software and the significance level was less than 0.05.
Results: In 42.8% of cases, mothers had started feeding combined formula with breast milk before visiting, and in 28.1% of cases, when referring to counseling milk clinics, it was reported that the baby was fed only with formula. After breastfeeding consultations and follow-ups at the end of six months, the rate of exclusive breastfeeding is 34.1% (12% increase compared to the initial reference) and combined formula feeding with breastmilk is 27.8% (a 22% decrease compared to the first visit). And feeding with powdered milk alone was calculated to be 36.5% (an increase of 8.4% compared to the first visit).
Conclusion: The positive role of breastfeeding counseling center in reducing the cases of artificial feeding is clear, and it is recommended to prepare written instructions based on the challenges in breastfeeding for breastfeeding counseling in the first month after delivery.
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Hadis Soleimanzadeh, Nahid Nasiri ,
Volume 81, Issue 2 (May 2023)
Abstract
Thalassemia is an autosomal recessive hereditary disease that occurs due to a decrease in the synthesis of Please recheck. In beta thalassemia, defects in β-globin synthesis lead to an imbalance of β- and α-globin chains and the accumulation of α4 chains in the erythroid precursor which leads to ineffective erythropoiesis, shortened red blood cell survival, and finally clinical symptoms such as delayed sexual and physical maturation, endocrine dysfunction, cardiomyopathy, liver disease, bone deformities and hepatosplenomegaly. Current treatments such as transfusion, iron chelating agents and allogeneic stem cell hematopoietic transplantation have limitations in their use, including iron overload, lack of a human leukocyte antigen (HLA) matched compatible donor, and graft versus host disease (GVHD). Gene therapy is a new therapeutic option for beta thalassemia patients that induces the continuous expression of beta globin chains in the patient’s hematopoietic stem cells. The idea of gene therapy was first proposed in the early 1970s, and the ultimate goal of this treatment method is to express the defective gene in the target cell in a way that can reduce the symptoms of the disease or eliminate them (symptoms) altogether. There are two general methods for gene therapy: the integrating vector, in which the desired gene is inserted into the genome of the target cell and its lifelong expression follows, is the non-integrating method, in which the vector doesn’t integrate into the genome of the target cell and the cytoplasmic form enables gene expression. The first beta thalassemia gene therapy was performed in France in 2006, and in this clinical trial, the first patient with the E/β0 thalassemia was treated at the age of 18. Gene therapy for beta-thalassemia has been approved by the food and drug administration in 2022 for patients aged 12 years and older who have a non β0/β0 phenotype. It seems that this therapeutic option is the definitive treatment method for blood transfusion-dependent beta-thalassemia patients. However, this treatment method still has limitations: high cost, sensitivity of lentiviral vector production, and the possibility of integration of the vector near the proto-oncogene and its activation are some of them.
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Nahid Askari, Ali Ali Shafieipour , Soudeh Khanamani Falahati-Pour,
Volume 81, Issue 5 (August 2023)
Abstract
Background: Mesenchymal stem cell (MSC) transplantation is a promising therapy for kidney repair. This study compared the regenerative effects of feline MSCs (fMSCs) and telmisartan, a renin-angiotensin blocker (RAB), in a feline model of chronic kidney disease (CKD).
Methods: The fMSCs were obtained from 35 Persian cats with CKD and characterized by CD44, CD90, and CD105 markers by using real-time RT-qPCR. The cats were randomly allocated to four groups, fMSCs injection (first group), telmisartan administration (second group), no treatment (third group), and healthy controls (fourth group). The study was conducted in Kerman province from December 2018 to December 2019. The factors that may affect the risk of CKD, such as age, weight, and history of kidney diseases, were considered as independent variables. The presence or absence of CKD was the dependent variable. The cats were followed up for 120 days and evaluated by physical examination, glomerular filtration rate (GFR), blood urea nitrogen (BUN), serum creatinine (SCr), serum urea, alanine transaminase (ALT), urine specific gravity (SG), and kidney histopathology. Statistical analysis was performed using SPSS software (version 20) with two-way ANOVA and Tukey test. P<0.05 was considered statistically significant.
Results: The fMSCs group showed significant improvement in GFR, BUN, SCr, serum urea, SG, and kidney histology compared to the other groups. The fMSCs group also showed increased expression of CD44, CD90, and CD105 genes in the kidney tissue, indicating enhanced stem cell activity. The telmisartan group showed modest improvement in blood pressure and proteinuria, but no significant effect on other parameters. fMSCs transplantation can restore the kidney function and structure in cats with CKD by modulating the apoptosis and proliferation of renal cells. The telmisartan patients benefited from the anti-hypertensive and anti-proteinuric effects of the drug, but not from its anti-fibrotic or anti-inflammatory effects.
Conclusion: fMSCs transplantation was more effective than telmisartan in improving kidney function and reducing kidney damage in cats with CKD. fMSCs may be a potential therapeutic option for CKD patients.
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Maryam Mokhtari, Seyyed Reza Attarzadeh Hosseini, Nahid Bijeh, Mohammad Mosaferi Ziaaldini ,
Volume 81, Issue 12 (March 2024)
Abstract
Background: Fatty liver disease is the most common cause of chronic liver diseases in the world, which can cause cardiovascular diseases, so this research aims to scrutiny a period of intense intermittent sports activity and growth hormone perfuse on cardiac mitochondrial PGC1α and some indicators of oxidative stress in mice with liver damage.
Methods: The present research was conducted from September 2022 to March 2023 in the specialized physical training laboratory of Ferdowsi University of Mashhad. The statistical population was twenty one adult male Syrian mice with an average weight of twenty three grams. The sports activity protocol was adopted for fifty-six days using the special video recorder for rodents. The intense interval training program was carried out in the form of ten one-minute repetitions and two-minute active rest, so that the total daily training time for each person was thirty minutes.The vaccination protocol includes the daily vaccination of somatropin injected intraperitoneally.
Results: The PGC1α levels were significantly higher in both the HIIT (P=0.02) and H- GH (P=0.03) groups collationed to the witness team. Moreover, the levels of SOD were considerably increased, in both the HIIT (P=0.05) and H-GH (P=0.005) team s compared to the witness team. Moreover, the levels of MDA were considerably decreased, in both the HIIT (P=0.007) and H-GH (P=0.04) teams compared to the witness team. The decrease in insulin resistance was significant only in the HIIT (P=0.05) team compared to the witness team and slightly increased in the H-GH (P=0.36) team but was not considered. The difference between HIIT and H-GH team (P=0.03) was also significant.The proportion of ALT/AST in both HIIT (P=0.02) and H-GH (P=0.03) teams had a significant decrease compared to the witness team. LDL/HDL proportion evidenced considered decrement at just in the HIIT team (P=0.01).
Conclusion: Intense intermittent sports activity was able to produce a more optimal response compared to GH peptide in improving NAFLD-related indices. Injection of this hormone single may have adverse outcomes on some indexes of this abnormality.
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