89 research outputs found
Hepatitis C among families of Thalassemic patients suffering from Hepatitis C in Shahrekord, 1999
Considering the high prevalence of Hepatitis C and its undetermined routes of transmission in 35% of the cases, this survey was performed to find the rate of intrafamilial transmission among the families of Thalassemic patients suffering from Hepatitis C in Shahrekord, 1999. The tests of ALT and anti-HCV antibody were carried out in 136 persons from 25 Thalassemic families at two phases of 6 months apart. The average age of the sample was 22.4±14.3 and 51.5% were female. Five persons had contact with the patient’s needle (Needle stick). No rise in ALT was seen and all of the cases were anti-HCV negative. Also, no case of Hepatitis C was found among the families of Thalassemic patients. In conclusion, intrafamilial transmission was not detected but due to its possibility and since a great number of patients has no other risk factor, this transmission rout could not be ignored
Fungi - an Amalgam of Toxins and Antibiotics: a Mini- Review
Fungi are eukaryotes with many functions. Earlier, fungi were classified in the plant kingdom but were later classified as a separate kingdom due to their unique cell walls. Fungi are heterotrophs like animals and are more closely related to animals. The perception of fungi is inconspicuous due to their small sizes and their ability to grow symbiotically in plants, animals, other fungi, and parasites. Fungi are used for their nutrition, fermentation potential, and bactericidal potential. However, fungi are also toxic due to certain bioactive compounds known as mycotoxins. Candida and Aspergillus are invasive species that contribute to a high percentage of mycoses in oncological and haematological patients. The mortality rate due to invasive aspergillosis and candidiasis is high, at 4% and 2%, respectively. In the agriculture sector, a significant contributor to damage to crops globally is the invasion of filamentous fungi. Fungi invasion destroys over 125 million tons of wheat, rice, soybeans, potatoes, and maize annually. If prevented, 600 million people may be fed. Therefore, it is vital to consider the dual role of fungi, therapeutic, and pathogenic
A comparison of the toxicity of the botanical insecticide, Sirinol and two chemical insecticides, Mospilan and Consult, on two natural enemies of the pistachio psyllid, coccinellid predator (Oenopia conglobata)...
Full Title:Â A comparison of the toxicity of the botanical insecticide, Sirinol and two chemical insecticides, Mospilan and Consult, on two natural enemies of the pistachio psyllid, coccinellid predator (Oenopia conglobata) and parasitic wasp (Psyllaephagus pistaciae)The common pistachio psyllid, Agonoscena pistaciae, is one of the most important pests of pistachio tree. This pest has many natural enemies and some of the important ones are the coccinellid predator (CP) (Oenopia conglobata) and the parasitic wasp (PW) (Psyllaephagus pistaciae). In this research, the effect of three concentrations of Sirinol on the first and fourth instar larvae and the adult of O. conglobata and on the pupae and adult of P. pistaciae was tested and the toxicity of this insecticide was compared with that of two chemical insecticides, Consult and Mospilan. Topical bioassay was carried out in laboratory condition; however, to investigate the resistance stage of the parasitic wasp, a completely randomized experimental design was used in the field condition in 2010 and 2011. The results of these experiments show that the chemical pesticide, Mospilan, caused more mortality of all the stages of the two previously mentioned natural enemies than did Sirinol. The results show that Mospilan had a slightly harmful, moderately harmful, moderately harmful, and slightly harmful effect on the adult of the PW and the adult and the first and fourth instar larvae of the CP, respectively and Consult had a harmless, slightly harmful, slightly harmful, and moderately harmful effect on the named stages of the PW and CP respectively. On the other hand, Sirinol had a slightly harmful effect on the adult of PW, but a harmless effect on the other stages; consequently, it falls into the category of International Organisation for Biological Control (IOBC). The field experiments conducted in 2010 and 2011 showed that 15.79% Mospilan, 13.8% Consult, and 6.49% Sirinol caused the mortality of the larvae and pupae of the PW. This research showed that Sirinol which caused very low mortality of the natural enemies of pistachio psyllid can be used in Integrated Pest Management (IPM) program in pistachio orchards.Keywords: Oenopia conglobata, Psyllaephagus pistaciae, insecticide, Sirinol, Consult, Mospila
Cost Estimation of Road Traffic Injuries Among Iranian Motorcyclists Using the Willingness to Pay Method
Background: Motorcycle riders are amongst some of the most vulnerable road users. The burden of motorcycles injuries from low and middle income countries is under-reported.
Objectives: In this study, the cost of traffic injuries among motorcyclists was calculated using the willingness to pay (WTP) method in Iran in 2013.
Patients and Methods: In a cross-sectional study, 143 motorcyclists were randomly selected. The research questionnaire was prepared based on the standard WTP method [stated preference (SP), contingent value (CV) and revealed preference (RP) models] taking into consideration perceived risks, especially those in Iran. Data were collected by a scenario for motorcyclists. The criteria for inclusion in the study consisted of having at least a high school education and being in the age range of 18 - 65 years. The final analysis of the WTP data was performed using the Weibull model.
Results: The mean WTP was 888,110 IRR (Iranian Rial) among motorcyclists. The statistical value of life was estimated according to 4694 death cases as 3,146,225,350,943 IRR, which was equivalent to USD 104,874,178 based on the dollar free market rate of 30,000 IRR (purchasing power parity). The cost of injury was 6,903,839,551,000 IRR, equivalent to USD 230,127,985 (based upon 73,325 injured motorcyclists in 2013, a daily traffic volume of 311, and a daily payment of 12,110 IRR for 250 working days). In total, injury and death cases came to 10,050,094,901,943 IRR, equivalent to USD 335,003,163. Willingness to pay had a significant relationship with having experienced an accident, the length of the daily trip (in km), and helmet use (P < 0.001).
Conclusions: Willingness to pay can be affected by experiencing an accident, the distance of the daily trip, and helmet use. The cost of traffic injuries among motorcyclists shows that this rate is much higher than the global average. Thus, expenditure should be made on effective initiatives such as the safety of motorcyclists
Hysteroscopic and Pathologic Evaluation of Chronic Endometritis in Patients with Unexplained Recurrent Spontaneous Abortion
BACKGROUND AND OBJECTIVE: Chronic endometritis is one of the most specific, but not the most common causes of infertility, which reduces the amount of pregnancy and poor results of pregnancy, such as preterm labor and abortion. The aim of this study was to evaluate the role of chronic endometritis in recurrent spontaneous abortions (RSA) and to determine the bilateral relationship between the histological and pathological findings of this inflammation.
METHODS: A case controlled-prospective observational study was performed on one hundred women 20-35 years in the Fatemeh Zahra infertility center and Rohani hospital. Patient group include forty patients with unexplained RSA and control group include 60 women that underwent hysteroscopy due to vaginal bleeding or other causes except RSA. All of the women underwent endometrial biopsy and examined by pathologist for presence plasma cells in stroma.
FINDINGS: In all patients endometritis rate was 8%. Patients with RSA had a significantly higher incidence of CE both hysteroscopically (30% vs. 6.7%; p<0.005) and pathologically (27.5% vs. 6.7%; p < 0.005). The sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of hysteroscopy in the diagnosis of CE were 93.3%, 97.6%, 87.5% and 98.8% respectively. Also the PPV and NPV of hysteroscopy, sensitivity, specificity in the diagnosis of endometrial polyp were 100%, 87.3%, 76.3% and 100% respectively.
CONCLUSION: Based on the results, there was a significant association between CE and unexplained RSA. Due to high sensitivity and acceptable specificity of hysteroscopy in diagnosis of CE and endometrial polyp, we recommended hysteroscopic evaluation of patients with unexplained RSA
Phytochemical screening, antimicrobial and antioxidant studies of Lannea egregia Engl. and K. Krause (Anacardiaceae) stem bark
Background: A substantial number of drugs are being developed from plants for the treatment of various diseases. Lannea egregia (LE) is a woody perennial plant used traditionally in the management of skin disorders and wounds.
Aim:Â To investigate the biological activities of different solvent extracts of LE bark.
Settings: Fresh stem bark of Lannea egregia was collected from Itabo Lanlate, Oyo State, Nigeria. The authentication was done in Forest Herbarium, Ibadan (FHI), Nigeria. The biological activities of the air-dried sample were carried out in the Department of Pharmacognosy, University of Ibadan, Nigeria.
Materials and methods: Powdered LE bark sample was extracted by gradient extraction. Phytochemical screening was performed on the extracts using standard procedure. In vitro antimicrobial study was performed on 14 strains of bacteria and 5 fungal strains at a concentration range of 25, 50, 75 and 100 mg/mL of the extract using ciprofloxacin and itraconazole as standard. The minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC) and minimum fungicidal concentration (MFC) were determined. The 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity and total phenolic content (TPC) of two active extracts were determined spectrophotometrically.
Results: The phytochemical screening of LE revealed the presence of tannins, terpenoids, flavonoids, anthraquinones, saponins and alkaloids. The dichloromethane (DCM) extract exhibited the highest activity against all the bacterial strains as well as four of the fungal strains. The zones of inhibition (ZI) of bacteria ranged from 9.0 ± 2.0 to 24.6 ± 2.4 mm, MIC of 0.0008 to 12.5 mg/mL and MBC of 25 to 75 mg/mL, while ZI of the fungal strains ranged from 10.3 ± 4.6 to 18.0 ± 5.3 mm, MIC 0.391 – 0.781 and MFC of 50 mg/mL in all the strains. The TPC values of DCM and ethyl acetate (EtOAc) extracts were 1582.47 ± 6.69 and 1579.89 ± 12.77 µg GAE/mg and inhibitory antioxidant activity of 2.54 ± 0.58 and 2.44 ± 0.54, respectively.
Conclusion: These findings provide scientific evidence to support the ethnomedicinal use of Lannea egregia bark for treating skin disorders and wounds
Predatory efficiency of Hippodamia variegata (Col.: Coccinellidae) on common pistachio psylla, Agonoscena pistaciae (Hem.: Aphalaridae), under laboratory conditions
Common pistachio psylla, Agonoscena pistaciae Burckhardt & Lauterer, is the most economically important species among the psyllid pests of pistachio in Iran. Hence, the possibility of using nonchemical control methods against A. pistaciae and the existence of its natural enemies need to be investigated. The spotted amber ladybird, Hippodamia variegata (Goeze), is one of the most effective predators in pistachio orchards. It is a highly polyphagous coccinellid that preys mainly on aphid and psyllid pests of pistachio trees. This study is intended to improve the knowledge about the predation capacity of A. pistaciae. The experiment was conducted under laboratory conditions of 25oC and 30oC, 55 ± 5 RH and 16: 8 L: D. Logistic regression was used to determine the type of functional response and nonlinear regression calculated the parameters of the rate of searching efficiency (a) and handling time (Th). The functional response on different density of prey at both temperatures was type II. The attack rate and handling time were 0.088 ± 0.012 h-1 and 0.0647 ± 0.011 h at 25ºC and 0.195 ± 0.031 h-1 and 0.0698 ± 0.056 h at 30ºC, respectively. The density and temperature affected the predation rate significantly. The data suggests that the H. variegata is a viable biological agent against A. pistaciae
Assessment of Effective Factors In Recurrent Implantation Failure (RIF) Following Assisted Reproductive Technology (ART)
BACKGROUND AND OBJECTIVE: Despite many advances have been made in the assisted reproduction techniques (ART), implantation rate after embryo transfer has not increased significantly. Therefore, this study aims to determine the factors involved in recurrent implantation failure (RIF) following ART.
METHODS: In this retrospective study, 80 infertile patients with a history of at least 3 recurrent implantation failure (RIF) following assisted reproductive technology (ART) were referred to Fatemezahra Infertility Center in Babol from March 2006 to March 2013 were selected. The control group also included 80 women who became pregnant following the first IVF. Associated factors of infertility, endocrine disorder and endometriosis were recorded and their effect on RIF was assessed in both groups.
FINDINGS: The mean BMI was 26.39±3.63 in the case group and 26.77±4.49 in the control group. Body mass index (BMI) >30 increased the risk of RIF significantly (p=0.001). After adjusting for the effects of other possible confounding factors, the odds ratio of obesity on RIF was 1.09(0.91-1.19) 95% CI which was not significant (p=0.06). There were no significant differences among type and cause of infertility, endocrine abnormalities, uterine malformations, endometriosis and polycystic ovary with RIF.
CONCLUSION: According to our findings, BMI, type and cause of infertility, endocrine disorders, uterine abnormalities, endometriosis, and polycystic ovary were not effective on recurrent implantation failure
- …