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In order to determine the relationship between breast feeding and growth pattern, the information about anthropometric measurement and feeding pattern in first 4-6 months of life and after that of 324 hospitalized children were recorded and analyzed results are as follow: 67.3% were exclusively breast-fed, 61.3% were breast-fed accompanied with non-maternal milk (Cow milk, formula, pasteurized cow milk) and 11.4% were fed with non-maternal milk only. 44.8% of the total patients had weight for the age under 5th percentile, 53.7% had height for the under 5th percentile and 26.9% had head circumference (HC) for age under 5th percentile of NCHS standard. 77.8% of infants under 6 months of age who had weight for age under 5th percentile never have been fed with breast milk. In the other hand 72.2% of patients with weight for age between 5-100th percentile fed exclusively with breast milk in first 4-6 months of life (P<0.03). 63.2% of infants aged 6-12 months with weight for age under 5th percentile have never been fed with breast milk in first 4-6 months or did not commence supplementary food on time. This study suggest that exclusively breast-feeding in first 4-6 months of life and continuation of breast milk beside supplementary food on proper time can provide better growth potential relative to other options.

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We studied the effect of different concentration of streptomycin in growth of Mycobacterium Tuberculosis strains. The results showed that in Streptomycin resistant and sensitive strains addition of 0.1 µg/ml and 0.01 µg/ml of Streptomycin in Lowenstein media, enhanced the appearance of colony about 5-7 and 1-5 days respectively. This observation may be due to the effect of Streptomycin on porin proteins of Mycobacterium Tuberculosis cell wall. Strains of M.tub showed modified colony morphology in the presence of low concentration of Streptomycin (0.1 & 0.01 µg/ml).

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Mycobacterial diseases are among the oldest disease known to human beings. There are a lot of bitter memories of Mycobacterial invasion especially Tuberculosis and leprosy in human mind, even now after discovery of etiology, diagnostic tool, prevention, and treatment, still, the recalling the above diseases are frightening to human being. Although leprosy isn’t an serious disease nowadays but the TB after a long period of quietness, is going to be an serious risk factor for mankind, especially in third world countries, after cooperating with HIV. Some atypical Mycobacteria, which have weak pathogenicity now, adapt themselves to the new condition and present as a dangerous cause of disease. The researcher that have made themselves familiar with such Mycobacterial features, trying hard to discus carefully the specifities and weak points of these bacteria, to fight them back. The aim of this review article is to highlight one of Mycobacterial characteristic, which is bacteruosis slow growth rate.

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Biosynthetic growth hormone is now available in virtually unlimited quantities. As a result because of its growth promoting and anabolic effects, it is widely used in various disorders in both children and adults. Growth hormone has been proven to be beneficial in a small number of diseases causing short stature in children, and in adults with severe growth hormone deficiency or acquired immunodeficiency syndrome (AIDS). The hormone is also used on an investigational basis in a variety of disorders causing short stature, as well as in the aged and in several catabolic conditions. It is likely that with time the indications for treatment with this hormone will be increased.

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Background & Objective: Neonatal growth indices can be influenced by either wanted, or unwanted pregnancy. This research was done to compare neonatal growth indices (Height, weight, head circumflex) to in such pregnancies in Birjand (South-east of Iran). Materials & Methods: This study case-control study was done on a total of 400 women and their neonates in the Imam Reza and Mehr maternity hospital in Birjand between 2000 to 2002. The number of case (UWP) and control (WP) were 150 and 250 respectively. Data were collected through a valid and reliable questionnaire by face to face interviewing with mothers and the determination of growth indexes of the neonates. The results were analyzed employing X² and student T-test by means of SPSS software. Results: The results revealed that the mean weight of the neonates in the case group (3151±410.4 grams) was meaningfully (P?0.05) less than the mean weight (3243±484 grams) of the neonates in the control group (WP). Besides, the mean weight gaining of mothers during their pregnancy in the cases (9±3.2 kg) was meaningfully (P<0.05) less than control group (9.7±3.4 kg). Conclusion: The results of this study, shows the impact of wanted pregnancy on weight gain and health improvement of mothers and their infants. It is therefore recommend that the health centers, mass and even high schools officials provide enough training to prevent unwanted pregnancies.

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Background and Objective: Short stature among children is often due to physiological causes but it can be a sign of important and curable diseases. Thus early detection of problem, before epiphyseal closure, is critical. This study was done to determine the cause of short stature among children in Gorgan-Iran. Materials and Methods: This cross- sectional research study was done on 100 children of 6-14 years of age during 2005 in Gorgan-Iran. Children were selected by census. Demographic character of children, history of serious disease, prematurity, blood and provocative growth hormone tests, physical examination, wrist radiography and standard deviation score (SDS) were recorded for each child. Data were analyzed by t-student and chi-square tests. Results: The finding of this study showd that most children with short stature was girl (66%). mean+-SD of calendar and bone age of female children was 10.4+-2.25 and 8.4+-2.32 year, respectively. The most frequent causes of short stature were constitutional (57%), Growth hormone deficiency (30%) and familial causes (8%). Mean+-SD of calendar and bone age of males children was 10.79+-2.32 and 7.89+-2.19 years. Children with growth hormone deficiency had lower bone age and children with constitutional short stature had higher standard deviation score than others. (P<0.05). Conclusion: This study showed that since growth hormone deficiency was one of the common and important pathologic causes of short stature. Therefore growth hormone determination and theraphy is recommended, after elimination of familial and constitutional factors.

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Background & Objective: Health evaluation and growth monitoring of the infant is a visual diagram of growth and primary health services are based on it. In the best option, these indices must be provided separately for each community. This study was done to evaluate growth indices of newborns in Gorgan- Northern Iran. Materials & Methods: In this observational descriptive study which was carried out during (Oct-Nov 2003), all healthy infants without any major abnormality born within 25-42 weeks of gestational age were evaluated in Dezyani Hospital, Gorgan growth indices (head circumference, length and height) were measured in 1011 infants. Gestational age was defined by Balard scoring and delivery type was recorded, too. After entering data into SPSS-10 software, data were analyzed using chi-square, t-test and correlation bivariate. Results: Mean gestational age (±SD) was 39.86±1.72 weeks and most of them were born by vaginal delivery. Amongst them, 3.2% were premature (less than 37 weeks), 4.4% were low birth weight and 0.69% were very low birth weight. Correlation between growth indices and gestational age was significantly positive in all cases (p<0.05). Conclusion: This study showed that growth indices are lower than other parts of Iran. Further investigations needed, especially longitudinally and cross-sectional, to determine the growth indices in this region and in other parts of country.

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Background and Objective: There are some factors including socio-demographic, maternal and nutritional variables reported to influence the growth of children in the first two years of life. The aim of this study was to determine some factors related to undesirable growth of 6 months–2years old children in Tabriz-Iran. Materials and Methods: In this case - control study 233 children with undesirable growth as cases, and 412 children with desirable growth as controls selected in five primary health care centers in Tabriz city in North-West of Iran during 2007. A questionnaire which included some questions regarding demographic characteristics, fertility history, and nutritional status was filled by using face -to - face interview with selected children’s mother. The influence of different factors on undesirable growth was evaluated with a logistic regression model by using SPSS-14 and EPI-2000 software. Results: Having any disease during two monitoring (OR=4.23, 95% CI: 2.95-6.07, P<0.001), type of pregnancy (unwanted) (OR=1.87, 95% CI: 1.20-2.93, P<0.006), gender (girl) (OR=1.51, 95%CI: 1.05-2.17, P<0.025), low birth weight (OR=1.0, 95% CI: 0.99-1.01, P<0.097) and having conflict in the family (OR=1.22, 95% CI: 1.01-1.47, P<0.045) associated with undesirable growth. Conclusion: This study determined having any disease, type of pregnancy, sex of child and low birth weight related with undesirable growth of 6 months –2years old children. Using safe family planning methods and help to reduce unwanted pregnancy, parental training about the nutritional requirements of children particularly during period of disease, is recommended in order to enhance the health of children.

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Antibiotics usage in domestic animals, as antibiotic growth promoters (AGPs) was considered from middle of 1950 onwards. Antibiotic feed additives as growth promoters have long been supplemented to animal food in very low amounts (5 to 20 ppm) to stabilize the intestinal microbial flora, improve the general performances, and prevent some specific intestinal pathogens. The widespread use of antibiotics as AGPs is playing a significant role in the emergence of resistant bacteria. The resistant bacteria in animals due to antibiotic exposure can be transmitted to human through the consumption of their products, from close or direct contact with animals, or through the environment and consequently, the increased concern about the potential for antibiotic resistant bacteria was led the European ::::union:::: and the United States regulations banning the use of AGPs in animal food since 2006. Various studies always look for a suitable replacement antibiotics to substitute to preserve the valuable role of these compounds. Extensive efforts on these alternatives have been started in last decades and some of these alternatives such as probiotics, prebiotics, synbiotics, ionophores, acidifier, organic acids, medicinal herbs and phytogenic can be pointed out. Hence, the aim of this review is to evaluate the antibiotic replacement strategy particularly medicinal herbs and their mechanisms as new growth and health promoters.

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Background and Objective: Ischemia-reperfusion invoke cell death in hippocampus. This study was carried out to investigate the effect of transforming growth factor alpha (TGF-alpha) of dentyte jyrus neurons and pyramidal cells of CA1 subfiled of hippocampus following ischemia-reperfusion in rat models. Materials and Methods: This experimental study was done on 40 male Wistar rats weighing 250-300gr. Animals were divided in four groups: control (n=7), sham (n=7), ischemia (n=14) and treatment (n=14). Sham group was just under surgical stress. In ischemia and treatment groups after induction of ischemia-reperfiusion by obstruction of carotid arteries blocked for 30 minutes, reperfusion PBS (phosphate buffer salin) and subsequently TGF-alpha (50 ng) were injected stereotaxicaly in lateral ventricle, respectively. In 12 and 72 days after treatment the brains were fixated by transcardial perfusion and stained by immunohistochemestry and nissle methods. Furthermore, morris water maze was used to evaluate the learning memory. Data were analyzed using SPSS-16 and ANOVA test. Results: Injection of TGF-alpha increased the cell number in hippocampus of treatment group compared to ischemic group. TGF-alpha increased expression of neuron in dentyte jyrus of treatment group in comparison with ischemic group (P<0.05). Also spatial memory improved in treatment group in comparison with ischemia group. Conclusion: TGF-alpha improves ischemia-induced neurodegenration and memory impairment.

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Background and Objective: The kidney has a key role in homeostatic regulation. Vascular endothelial growth factor (VEGF) is essential regulator of stimulatory and inhibitory processes for neonatal, post-natal endothelial cell differentiation. This study was done to determine the effect of maternal swimming during pregnancy on VEGF level of kidney in rat pups. Methods: In this experimental study, sixteen Wistar rat dams were allocated into interventional swimming and control groups. In the first day of pregnancy, in interventional group, swimming was performed for 30 minutes a day and 5 minutes every day was added until the time of training gradually reached to one hour per workout. Dams swimming endurance training were performed in 5 days per week for three weeks. Pups’ kidneys were removed two days after birth and kindney tissue VEGF level was determined using ELISA method. Results: Kidney tissue VEGF level in interventional swimming group (133.13 pg/ml) was significantly increased in compared to controls (48.19 pg/ml) (P<0.05). Conclusion: Swimming endurance training increases the pups’ kidney VEGF level.

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Background and Objective: Neurotrophic factors increase neuron survival and growth. In addition their expression is altered in response to nerve injury. This study was done to evaluate the neuroprotective effect of n-butanol, ethylacetate, aqueous and hydro-alcoholic fractions of Anthemis nobilis extracts through nerve growth factor (NGF) gene expression after sciatic nerve injury in rats.

Methods: In this experimental study, 36 male Wistar rats were randomly allocated into 6 groups including control group, compression, compression + hydro-alcoholic extract, compression + n-butanol, compression + ethyl acetate fraction and compression + aqueous fraction with dose of 75 mg/kg/bw, respectively. Hydro-alcoholic, aqueous, n-butanol and ethyl acetate extract of Anthemis nobilis from aerial parts was prepared by soxhlet method. In control group, after anesthetizing the animals, the muscle was cut at the site of sciatic nerve without damaging and in compression and treatment group, the right sciatic nerve was compressed for 60 sec. The extract first time was injected intraperitoneally after nerve compression and the second was performed 7 days later. After 28 days, samples were prepared from the lumbar portion of spinal cord and cDNA was synthesized and total RNA was extracted. The changes in NGF gene expression evaluated using Δct and Real Time PCR methods.

Results: NGF gene expression significantly reduced in the compression group in compare to control (P<0.05). The expression of NGF significantly increased in treated groups including hydro-alcoholic extract, n-butanol, ethyl acetate and aqueous fractions in compare to compression group (P<0.05). The expression of NGF was more in hydro-alcoholic extract treated group in comparision with other factions treated groups.

Conclusion: Neuroprotective effect of of the aerial parts of Anthemis nobilis may be due to increase of NGF gene expression.

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Background and Objective: Aging eldely is associated with impaired angiogenesis, glomerulosclerosis and increased susceptibility to nephrotoxic injury. This study was done to compare the independent and combined effect of aerobic exercise and garlic extract on the levels of renal vascular endothelial growth factor (VEGF) and transforming growth factor-β1 (TGF-β1) in eldely rats.

Methods: In this experimental study, 35 aged eldely male Wistar rats were randomly allocated into 5 groups including control, sham, garlic (2.5 g/kg/bw), aerobic exercise, garlic plus exercise. The animals exercised by swimming training at 5 min to 60 min per day, 3 days a week over 8 weeks. Animals in garlic plus exercise were received garlic extract (2.5 g/kg/bw) and swimming training. The renal TGF-β1 and VEGF level were evaluated by ELIZA method.

Results: 8 weeks swimming training, garlic supplementation and the combined intervention were associated with a significant increased the renal VEGF and reduced TGF-β1 level (P<0.05). There was no difference between swimming training, garlic supplementation and garlic plus exercise on renal VEGF and TGF-β1 levels in aged rats.

Conclusion: It seems that the protective role of regular swimming training, garlic supplementation and the combined intervention in the renal aging process meight in part be related to their ability to attenuate TGF- β1 and up regulating VEGF.

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Background and Objective: Increasing the cost of energy in obesity preventing and treating and reducing its complications can be achieved by stimulating the factors including Irisin and FGF21 associated with browning of the white adipose tissue. The aim of this study was to determine the effect of 12 weeks of light and heavy interval exercises on the level of irisin and FGF21 in obese and overweight women.
Methods: This clinical traial study was done on 35 overweight and obese women (39.8±3.85 years old and body mass index 27.1±3.37 kg/m²). The subjects were divided randomly into three groups of interval exercises including Heavy (n=12), light (n=12), and control (n=11) groups. The training program included 12 weeks of heavy and light interval exercises for 25 to 60 minutes per session and three sessions per week. Before and after the training period, irisin and FGF21 serum indices were measured for each subject.
Results: Serum level of FGF21 increased only after 12 weeks of heavy interval training (P<0.05). However, there was no change in serum irisin levels after both heavy and light interval exercises. Body fat percentage, waist to hip ratio, and BMI Subjects of light and heavy interval exercises reduced and VO₂max increased significantly compared to control group (P<0.05).
Conclusion: 12 weeks of low and heavy interval training without altering serum levels of irisin have a beneficial effect on increasing VO₂max and improving body composition. Also, heavy interval training has a significant increase in FGF21, Which can be effective in weight loss through the browning of white adipose tissue.
 

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Background and Objective: Cancer can spread to distant parts of the body through the lymphatic system or bloodstream. Angiogenesis is a fundamental step in the transition of tumors from a dormant state to a malignant. Some changes in cancerous cells can be improved and treated using herbal extracts. Salvia species in Iranian traditional medicine were used against various infections, inflammatory diseases.This study was done to evaluate the effect of aqueous extract of Salvia atropatana leaf on subcutaneous tumor model of CT26 colon carcinoma in Mice.
Methods: In this experimental study, for the induction of colon carcinoma, 26CT cells were injected into 18 BALB/c male Mice. Subcutaneous injection was done in the right side of the animal. When the size of the tumor was 50±350 mm3, 18 Mice were randomly allocated into 3 groups, including controls, aqueous extracts a breakdown of each dose 50 and 100 mg/kg/bw. The group containing the aqueous extracts of Salvia atropatana leaf was injected for 14 days, daily. To monitor the therapeutic effects, the parameters of the stopping rate in the growth of the tumor, the relative volume changes and the doubling of tumor volume were evaluated. After sacrificed the animals at the end the fourteenth day of the study, tumors were dissected for histological study.
Results: The volume of tumors and the mean density of the number of vessels was significantly reduced in treated group 1 (50 mg/kg/bw of aqueous extracts of Salvia atropatana leaf) and treated group 2 (100 mg/kg/bw of aqueous extracts of Salvia atropatana leaf) in compared to control group (P<0.05). Reduction in density of cells and vascular sections was significantly reduced in treated group 1 (50 mg/kg/bw of aqueous extracts of Salvia atropatana leaf) and treated group 2 (100 mg/kg/bw of aqueous extracts of Salvia atropatana leaf) in compared to control group (P<0.05).
Conclusion: Aqueous extracts of Salvia atropatana leaf has anti-angiogenesis activity and significant inhibitory effects on tumor growth in animal model.

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Background and Objective: Exercise in cardiac patients after coronary artery bypass grafting (CABG) improves cardiovascular function by increasing the capillary density of the myocardium. Platelet-derived growth factor and stromal cell-derived factor-1 play an important role in angiogenesis and cell proliferation and differentiation. This study was performed to determine the effect of eight weeks of combined training on plasma levels of Platelet-derived growth factor (PDGF) and stromal cell-derived factor-1 (SDF1) in CABG patients.
Methods: In this clinical trial study, 24 patients who underwent coronary artery bypass grafting operation were selected using convenience and purposeful sampling method and randomly divided into two combined training and control groups. Subjects in combined training group were received aerobic and resistance training protocols for eight weeks, three sessions per week. Before and after training program, body composition assessments and blood sampling were performed to measure Platelet-derived growth factor (PDGF) and stromal cell-derived factor-1 (SDF1). ELISA method was used to measure PDGF and SDF1.
Results: The level of PDGF was significantly increased in intervention group in compared to control group (P<0.05). Although the level of SDF1 in the intervention group increased in intervention group in compared to control group; but this increase level of SDF1 was not significant.
Conclusion: This study showed that the eight weeks of combined rehabilitation training can promote desirable physiological adaptations in cardiovascular health by increasing the plasma levels of PDGF.

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Background and Objective: Intrauterine growth restriction (IUGR) is an obstetrical complication. IUGR increases the chance of neonatal death and obstetrical complications in comparison with normal pregnancy. Timely diagnosis of this condition allows effective interventions that decrease the morbidity and mortality. This study was done to compare of superior vena cava to aorta diameter ratio in three vessel view in fetuses with intrauterine growth restriction and normal growth fetuses.
Methods: This case control study was performed on 60 mothers in 25 to 37 weeks of pregnancy who were referred to radiology department of a hospital in Iran during 2018-19. 30 patients were diagnosed with IUGR and were included as case group. 30 healthy fetuses were included as control group. Routine ultrasonography was performed for evaluating placenta, fetuse, and amniotic fluid. Also, colour Doppler sonography was performed on umbilical vessels along with superior vena cava and ascending aorta for definite diagnosis of IUGR. Demographic data regarding fetuse’s age, pregnancy status, number of parities, and age of mother were also accumulated. The superior vena cava/aorta ratio (SVC/AO) was compared in IUGR and healthy fetuses. Based on their amniotic fluid, fetuses were divided into normal and mild oligohydramnios.
Results: There was a significant difference in SVC/AO diameter index between case and control groups (P<0.05). Mean SVC/AO ratio was significantly higher in IUGR fetuses in compared to healthy fetuses. There was no significant difference between normal and oligohydramnios fetuses either in case or control groups.
Conclusion: Implementation of SVC/AO diameter index in three vessels view sonography in screening programs for pregnant women can reduce neonatal morbidity and mortality.

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Background and Objective: Differentiation of white adipose tissue into brown through hormonal and non-hormonal factors, causes weight loss and weakens in obese and overweight people. This study was performed to determine the effect of 12 weeks of interval exercise with different intensities on serum levels of fibroblast growth factor 21 and myostatin in obese and overweight males.
Methods: This clinical trial study was done on 47 obese and overweight males (20.5±0.73 years old). Subjects were randomly divided into four groups: control, interval exercise with low intensity, moderate intensity and high intensity. The exercise program consisted of 12weeks of interval exercise with light, medium and heavy intensity respectively with 58-63, 73-78 and 88-93 percent of Reserve heart rate for 25 to 63 minutes and three sessions per week. Serum indices of fibroblast growth factor 21 and myostatin were measured using fasting blood sample 48 hours before and after exercise program using ELISA method.
Results: Performing 12 weeks of interval training with different intensities was not contribute to significant changes in the serum levels of fibroblast growth factor 21 and myostatin. Implementation of interval exercise at moderate and high intensities was associated with reduction of body fat percentage and increasing in maximal oxygen consumption (VO₂max) in overweight and obese men (P<0.05).
Conclusion: Performing 12 weeks of low, medium and high intensity interval training without changing the serum level of fibroblast growth factor 21 and myostatin has a beneficial effect on improving body composition and increasing VO₂max in obese and overweight young males.

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Background and Objective: Multiple sclerosis (MS) is a common neurological disease that increases oxidative stress and causes immune system disorders. Curcumin is the active component of turmeric with anti-inflammatory properties. This study was conducted to determine the effects of curcumin on cortisol, catalase, and nerve growth factor (NGF) expression in an animal model of MS.
Methods: This experimental study was conducted on 30 female Wistar rats. Experimental autoimmune encephalomyelitis (EAE) was chosen as an experimental model of MS. The rats were divided into 3 groups of 10, including a healthy control group, an affected group, and a group treated with curcumin. The disease was induced by immunization of rats with homogenized guinea pig spinal cord and Freund's complete adjuvant. Then, the immunized animals were allocated into two equal groups. Treatment with curcumin (100 mg/kg daily) was started 12 days after the immunization when the rats showed the first symptoms of neurologic disability. The treatment was continued until day 24 post-immunization. Simultaneously, the EAE group received the medicine solvent (distilled water). Finally, the rats' weights as well as cortisol, catalase, and NGF levels were measured in the study groups.
Results: Curcumin significantly increased the level of cortisol to a level equal to that of healthy rats (P<0.05). It also significantly increased the expression of NGF and reduced the amount of catalase in the affected rats (P<0.05). The curcumin administration significantly increased the overall weight of rats with MS but had no significant effect on the spleen weight of the treated rats.
Conclusion: Curcumin can be beneficial for treating EAE by reducing the destructive effects of oxidative damage and increasing NGF.
 

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Background and Objective: Breast cancer is one of the most common diseases worldwide and the second leading cause of death among women. Immune responses play a critical role in inhibiting the onset and progression of this disease. Given the important role of T lymphocytes in identifying and preventing the spread of breast cancer tumor cells, this study was conducted to simultaneously evaluate the regulatory molecules CXC chemokine receptor 3 (CXCR3), programmed cell death protein 1 (PD-1), natural killer group 2 member D (NKG2D), and transforming growth factor beta 1 receptor II (TGF-βRII) on T lymphocytes of newly diagnosed breast cancer patients.
Methods: This case-control study was performed on 26 newly diagnosed breast cancer patients (mean age = 46.2±9.5 years) admitted to the Fifth Azar Educational-Therapeutic Center in Gorgan, Iran, and 12 non-breast cancer individuals (mean age = 42.9±9.9 years) selected from the staff and students of Golestan University of Medical Sciences during 2018-2019. First, blood sampling was performed and peripheral blood mononuclear cells (PBMCs) were isolated. Then, using flow cytometry, different cell populations were evaluated for the expression of CXCR3, PD-1, NKG2D, and TGF-βRII. Plasma levels of interferon gamma (IFN-γ) and major histocompatibility complex class I chain related gene-A (MIC-A) were measured by enzyme-linked immunosorbent assay (ELISA).
Results: The mean percentage of T lymphocyte population in newly diagnosed breast cancer patients was significantly lower compared to healthy individuals (P<0.05). Also, the mean percentage of T lymphocytes expressing PD-1 and TGF-βRII was higher in the case group compared to the control group, while the expression of NKG2D and CXCR3 showed lower levels (P<0.05). The results of comparing plasma concentrations of IFN-γ and MIC-A indicated that the case group had higher levels of MIC-A than the control group (P<0.05); however, no statistically significant difference was found regarding IFN-γ.
Conclusion: It seems that the increased expression of TGF-βRII and PD-1 along with the decreased expression of NKG2D and CXCR3 and the reduced level of MIC-A in newly diagnosed breast cancer patients may be related to upregulation and potent suppression of T lymphocyte immunity and their dysfunction in breast cancer disease.