206 research outputs found

    Studies on the genetics of micrococcus radiodurans

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    Combining mammaglobin and carcinoembryonic mRNA markers for early detection of micrometastases from breast cancers - a molecular study of 59 patients

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    Introduction: As many as 30% of node-negative breast cancer patients relapse within five years, suggesting that current histological detection methods are inadequate for identifying metastatic disease. Detecting small number of cancer cells in the breast tissue or lymph node by reverse transcription-polymerase chain reaction (RT-PCR) assays using a combination of tissue and cancer specific markers might be very useful in the early detection or monitoring of the treatment. Mammaglobin is a member of the uteroglobin gene family and appears to be expressed only in breast tissue. Carcinoembryonic antigen has been the preferred molecular marker for detection of micro metastases in lymph nodes in almost all carcinomas. Materials and Methods: Samples were collected from randomly chosen breast cancer patients undergoing modified mastectomy or breast conserving surgery between September 2003 and July 2004. RT-PCR was applied to study the expression of MMG and CEA markers. Breast cancer micrometastases in axillary lymph nodes were also assessed. Results: The MMG marker was positive in 9/10 normal breast tissues, 3/ 3 breast fibroadenomas and 37/39 of breast carcinoma tissues, giving an overall sensitivity of 94%. The sensitivity was 80% for metastatic lymph node samples. On the other hand CEA showed 95% sensitivity for malignant breast tumors and 100% sensitivity for metastatic lymph nodes. Conclusions: RT-PCR using a combination of MMG and CEA markers is a powerful tool to complement current routine histopathology techniques for detection of breast cancer metastasis in axillary nodes

    Comparative repellency effect of three plant extracts on Paederus beetles (Coleoptera: Staphylinidae), the cause of linear dermatitis in Iran

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    AbstractObjectiveTo investigate the repellent effect of neem, juniper and eucalyptus extracts as a form of protection against Paederus beetles, which are a cause of linear dermatitis in Iran.MethodsAfter collecting and extracting plant samples, the extracts were tested on Paederus beetles in three concentrations (2.5%, 5.0% and 10.0%) with direct method under laboratory conditions. The data were analyzed using SPSS software (version 20).ResultsThe results indicated that there was a significant difference between neem with juniper and eucalyptus at the 2.5% and 5.0% concentrations (P < 0.05), whereas there was a significant difference between all three extracts at the 10.0% concentration (P < 0.05).ConclusionsThis is the first report on the repellent effect of these three plant extracts on Paederus beetles. Neem oil appeared to have the largest effect on Paederus spp. and juniper essential oil exhibited the second highest repellency, followed by eucalyptus

    Comparative repellency effect of three plant extracts on Paederus beetles (Coleoptera: Staphylinidae), the cause of linear dermatitis in Iran

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    Objective: To investigate the repellent effect of neem, juniper and eucalyptus extracts as a form of protection against Paederus beetles, which are a cause of linear dermatitis in Iran. Methods: After collecting and extracting plant samples, the extracts were tested on Paederus beetles in three concentrations (2.5%, 5.0% and 10.0%) with direct method under laboratory conditions. The data were analyzed using SPSS software (version 20). Results: The results indicated that there was a significant difference between neem with juniper and eucalyptus at the 2.5% and 5.0% concentrations (P < 0.05), whereas there was a significant difference between all three extracts at the 10.0% concentration (P < 0.05). Conclusions: This is the first report on the repellent effect of these three plant extracts on Paederus beetles. Neem oil appeared to have the largest effect on Paederus spp. and juniper essential oil exhibited the second highest repellency, followed by eucalyptus

    Relationship between emotional intelligence and organizational citizenship behavior in critical and emergency nurses in south east of Iran

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    Background: Several factors including emotional intelligence affect the efficiency of people. It seems that organizational behavior of each person is strongly influenced by emotional intelligence. Therefore, the present study is aimed to examine the relationship between emotional intelligence and organizational citizenship behavior in critical and emergency nurses in teaching hospitals supervised by Kerman Medical University in Southeast of Iran.Methods: This study employed a descriptive cross sectional design. A census sample consisted of 150 critical and emergency nurses working in teaching hospitals supervised by Kerman Medical University participated in this study. Emotional intelligence and organizational citizenship behavior questionnaire was used to assess nurses’ emotional intelligence and organizational citizenship behavior by available sampling method.Results: The results showed that the mean age of the participants was 35 years. Most participants (94%) were females and belonged to the age group of 26-30 years. Overall mean score of organizational citizenship behavior scale was 88.21 (±10.4). In the organizational citizenship behavior categories, altruism mean score was higher than the other mean scores. Overall mean score of emotional intelligence was (121.08 ± 17.56). In the subgroups of emotional intelligence, mean score of the relationship management, was higher than the average of other factors. Pearson's correlation coefficient showed no significant relationship between emotional intelligence and organizational citizenship behavior (p ≥ 0.05).Conclusion: The study suggests that health care managers should organize systematic and dynamic policies and procedures in dealing with emotional intelligence and organizational citizenship behavior to assist critical and emergency nurses.Keywords: Emotional intelligence, Oorganizational citizenship behavior, nurse, critical ward, emergency war

    Fly fauna of livestock’ s of Marvdasht County of Fars Province in the South of Iran

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    Flies damage the livestock industry in many ways, including damages, physical disturbances, the transmissions of pathogens and the emergence of problems for livestock like Myiasis. In this research, the fauna of flies of Marvdasht County was investigating, which is one of the central counties of Fars province in southern Iran. In this study, a total of 20 species of flies from 6 families and 15 genera have been identified and reported. The species collected are as follows: Muscidae: Musca domestica Linnaeus, 1758, Musca autumnalis* De Geer, 1776, Stomoxys calci-trans** Linnaeus, 1758, Haematobia irritans** Linnaeus, 1758 Fanniidae: Fannia canicularis* Linnaeus, 1761 Calliphoridae: Calliphora vomitoria* Linnaeus, 1758, Chrysomya albiceps* Wiedemann, 1819, Lu-cilia caesar* Linnaeus, 1758, Lucilia sericata* Meigen, 1826, Lucilia cuprina* Wiedemann, 1830 Sarcophagidae: Sarcophaga africa* Wiedemann, 1824, Sarcophaga aegyptica* Salem, 1935, Wohl-fahrtia magnifica** Schiner, 1862 Syrphidae: Eristalis tenax* Linnaeus, 1758, Syritta pipiens* Linnaeus, 1758, Eupeodes nuba* Wiedemann, 1830, Syrphus vitripennis** Meigen, 1822, Scaeva albomaculata* Macquart, 1842 Species identified with * for the first time in the county and the species marked with ** are reported for the first time from the Fars province

    Ectopic Cushing's syndrome secondary to lung and mediastinal tumours - Report from a tertiary care centre in Iran

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    Introduction: Ectopic Cushing's syndrome (ECS) secondary to neuroendocrine tumours (NETs) of the lung and mediastinum are rarely encountered. In this study, we present our experience in Iran on 15 patients with ECS secondary to lung and mediastinal tumours over a period of 27 years. Material and methods: Since 1985, 15 patients with ECS secondary to lung and mediastinal tumours have been diagnosed and prospectively followed by the endocrinology team of Taleghani Hospital, Tehran, Iran. The clinical signs and symptoms, laboratory findings, radiological features, immunohistochemical characteristics, management strategies and outcome data are here presented. Results: There were six women and nine men, aged 26-70 years, all presenting with typical features of Cushing's syndrome. Based on histopathologic evaluations, four patients had small cell lung cancer (SCLC) and seven patients had pulmonary NETs, one patient had a thymic NET, and one case was diagnosed as a lung tumourlet. The mean ± SD serum cortisol, 24h urine free cortisol and plasma ACTH were 47.2 ± 20.5 μg/dL, 2,702 ± 5,439 μg/day, and 220 ± 147 pg/mL, respectively. Pulmonary lesions ranged in diameter from 1.1 to 4 cm (mean 1.9 ± 1.1 cm). One patient had a 10 cm mediastinal mass. The duration of follow up in these cases was between one month and seven years (mean 29.9 ± 27.5 months). The four patients with SCLC died within three months of diagnosis. Conclusion: Our data demonstrates the protean clinical and laboratory manifestations of ECS secondary to lung and mediastinal tumours, the problems encountered in diagnosis, and the need for a multidisciplinary approach. This study confirms other series from Western Europe and North America that, unlike the SCLC patients who show a poor outlook, ECS secondary to lung carcinoids has a more favourable prognosis

    Ektopowy zespół Cushinga u pacjentów z nowotworem śródpiersia lub płuc — doniesienie z ośrodka trzeciego stopnia referencyjności w Iranie

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    Introduction: Ectopic Cushing`s syndrome (ECS) secondary to neuroendocrine tumours (NETs) of the lung and mediastinum are rarely encountered. In this study, we present our experience in Iran on 15 patients with ECS secondary to lung and mediastinal tumours over a period of 27 years. Material and methods: Since 1985, 15 patients with ECS secondary to lung and mediastinal tumours have been diagnosed and prospectively followed by the endocrinology team of Taleghani Hospital, Tehran, Iran. The clinical signs and symptoms, laboratory findings, radiological features, immunohistochemical characteristics, management strategies and outcome data are here presented. Results: There were six women and nine men, aged 26–70 years, all presenting with typical features of Cushing’s syndrome. Based on histopathologic evaluations, four patients had small cell lung cancer (SCLC) and seven patients had pulmonary NETs, one patient had a thymic NET, and one case was diagnosed as a lung tumourlet. The mean ± SD serum cortisol, 24h urine free cortisol and plasma ACTH were 47.2 ± 20.5 μg/dL, 2,702 ± 5,439 μg/day, and 220 ± 147 pg/mL, respectively. Pulmonary lesions ranged in diameter from 1.1 to 4 cm (mean 1.9 ± 1.1 cm). One patient had a 10 cm mediastinal mass. The duration of follow up in these cases was between one month and seven years (mean 29.9 ± 27.5 months). The four patients with SCLC died within three months of diagnosis. Conclusion: Our data demonstrates the protean clinical and laboratory manifestations of ECS secondary to lung and mediastinal tumours, the problems encountered in diagnosis, and the need for a multidisciplinary approach. This study confirms other series from Western Europe and North America that, unlike the SCLC patients who show a poor outlook, ECS secondary to lung carcinoids has a more favourable prognosis. Wstep: Ektopowy zespół Cushinga (ectopic Cushing`s syndrome, ECS), który rozwija się u pacjentów mających nowotwory neuroendokrynne (neuroendocrine tumours, NET) śródpiersia lub płuc, jest zaburzeniem rzadko spotykanym. Niniejsza publikacja przedstawia doświadczenia autorów z ośrodka w Iranie, którzy w okresie 27 lat prowadzili 15 pacjentów z zespołem Cushinga wtórnym do nowotworów śródpiersia lub płuc. Materiał i metody: W okresie od 1985 zespół endokrynologów ze szpitala Taleghani Hospital w Teheranie zidentyfikował i prowadził w sposób prospektywny 15 pacjentów z objawami ECS uwarunkowanymi obecnością nowotworów śródpiersia lub płuc. Niniejsza publikacja przedstawia obraz kliniczny i objawy podmiotowe, wyniki badań laboratoryjnych i radiologicznych oraz badań immunohistochemicznych materiału tkankowegoz guzów nowotworowych, a także informacje na temat wdrożonego leczenia i jego wyników. Wyniki: W badanej grupie znalazło się 6 kobiet i 9 mężczyzn, w wieku 26–70 lat. U wszystkich pacjentów stwierdzono typowe cechy kliniczne zespołu Cushinga. Na podstawie badań histopatologicznych wycinków z guzów nowotworowych postawiono rozpoznanie drobnokomórkowego raka płuca (SCLC, small cell lung cancer) u 4 pacjentów, neuroendokrynnego nowotworu płuca (NET) bliżej nieokreślonego typu u 7 pacjentów, NET grasicy u jednej osoby oraz rozpoznanie zmiany typu tumorlet w płucu u jednej osoby. Średnie stężenie kortyzolu w surowicy ( ± odchylenie standardowe) wyniosło 47,2 ± 20,5 μg/dl, stężenie wolnego kortyzolu w moczu ze zbiórki dobowej 2.702 ± 5.439 μg/dobę, a stężenie ACTH w osoczu 220 ± 147 pg/ml. Zmiany nowotworowe w płucach miały wielkość od 1,1 do 4 cm (średni wymiar guza 1,9 ± 1,1 cm). Guz śródpiersia (u jednej osoby) miał średnicę 10 cm. Czas obserwacji wyniósł od 1 miesiąca do 7 lat (średnia 29,9 ± 27,5 miesięcy). Czterech chorych na SCLC zmarło w okresie do 3 miesięcy od postawienia rozpoznania. Wnioski: Przedstawione dane wskazują na różnorodność obrazu klinicznego i danych laboratoryjnych u pacjentów z objawami ECS w przebiegu choroby nowotworowej śródpiersia lub płuc. Konstelacja ta wymaga więc wielospecjalistycznej opieki już od momentu wdrożenia postępowania diagnostycznego. Przedstawione wyniki są zbieżne z danymi z publikacji pochodzących z Europy Zachodniej i Stanów Zjednoczonych i wskazują na stosunkowo korzystne rokowanie u pacjentów mających objawy ECS w związku z rakowiakiem płuca, w przeciwieństwie do pacjentów mających zmiany typu SCLC

    Developing and Testing a Spiritual Care Questionnaire in the Iranian Context

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    Abstract As most research exploring nurses’ perceptions on the topic of spiritual care was conducted in Western countries, these findings may not be applicable in Iran because of cultural and health system differences. Therefore, a new survey instrument was developed for the Iranian context. The study was conducted in two steps: (1) development and validation of items for perception scale and (2) distribution of the questionnaire among nursing students to determine scale reliability and construct validity. The preliminary scale consisted of 50 items designed to measure the participants’ perception of spiritual care. Construct validity of the scale was examined on the remaining 33 items. On interpretation of the items, the following four components were identified: (1) meeting patient as a being in meaning and hope, (2) meeting patient as a being in relationship, (3) meeting patient as a religious being, and (4) meeting patients as a being with autonomy. The results in this paper showed that preserving dignity in the nurses’ practice meant getting involved in interpersonal caring relationships, with respect for the involved peoples’ religious beliefs and their autonomy. Proper education and professionally led supervision with reflection on past and recent experiences may develop student nurses’ and nurses’ perceptions as well as their attitudes toward spiritual care and to achieve a realistic view of the profession

    Fabrication of an olfactometer for mosquito behavioural studies

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    Background & objectives: Olfaction is the major sensory modality involved in the resource searching behaviour of insects including vector mosquitoes (Diptera: Culicidae). To date, our current country-wide knowledge on the host-seeking behaviour of Iranian mosquitoes is mainly confined to host preference which has exclusively come from field studies. Olfactometer is a scientific tool by which more naive aspects of man-vector contact can be clarified under controlled and less biased conditions. Methods: The wind tunnel and stimulus delivery system was constructed from acrylic materials based on previously introduced models with some modifications. Air supply and required light were ensured by a powerful compressor and incandescent bulbs, respectively. Desired level of temperature was maintained by controllable heating radiators. For humidity production a unique in-built piezo system was devised in the course of the air flow. Fine regulators facilitated the continuous generatation of the humidity at a preset level. Results: Titanium tetrachloride smoke plus monitoring of the wind speed revealed that the flow of air was proper and invariable. A desired level of humidity and temperature could be set up in just 10 and 15-45 min, respectively. These physical parameters varied only +/-2% (humidity) and +/-0.15 degrees C (temperature) in a typical 20 min duration. Conclusion: The first sophisticated olfactometer in the field of medical entomology in Iran is reported here. Fast set up and stability of physical parameters are its salient features. It is expected that with the aid of this olfactometer further information on the physiological principles of the host-seeking behaviour of mosquitoes become available soon
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