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1.
Ecotoxicol Environ Saf ; 280: 116526, 2024 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-38823346

RESUMO

OBJECTIVES: Fetal overgrowth has detrimental effects on both the mother and the fetus. The global issue of ambient air pollution has been found to contribute to fetal overgrowth through various pathways. This study aimed to identify the association between prenatal exposure to ambient air pollution and the risk of fetal overgrowth. METHODS: We identified articles between January 2013 and February 2024 by searching the Web of Sciences(WoS), PubMed, Proquest, Scopus, and Google Scholar databases. Quality assessment was performed using the Newcastle Ottawa scale. This review was provided based on the PRISMA guideline and registered with PROSPERO, "CRD42023488936". RESULTS: The search generated 1719 studies, of which 22 cohort studies were included involving 3,480,041 participants. Results on the effects of air pollutants on fetal overgrowth are inconsistent because they vary in population and geographic region. But in general, the results indicate that prenatal exposure to air pollutants, specifically PM2.5, NO2, and SO2, is linked to a higher likelihood of fetal overgrowth(macrosomia and large for gestational age). Nevertheless, the relationship between CO and O3 pollution and fetal overgrowth remains uncertain. Furthermore, PM10 has a limited effect on fetal overgrowth. It is essential to consider the time that reproductive-age women are exposed to air pollution. Exposure to air pollutants before conception and throughout pregnancy has a substantial impact on the fetus's vulnerability to overgrowth. CONCLUSIONS: Fetal overgrowth has implications for the health of both mother and fetus. fetal overgrowth can cause cardiovascular diseases, obesity, type 2 diabetes, and other diseases in adulthood, so it is considered an important issue for the health of the future generation. Contrary to popular belief that air pollution leads to intrauterine growth restriction and low birth weight, this study highlights that one of the adverse consequences of air pollution is macrosomia or LGA during pregnancy. Therefore governments must focus on implementing initiatives that aim to reduce pregnant women's exposure to ambient air pollution to ensure the health of future generations.


Assuntos
Poluição do Ar , Macrossomia Fetal , Exposição Materna , Efeitos Tardios da Exposição Pré-Natal , Feminino , Humanos , Gravidez , Poluição do Ar/efeitos adversos , Estudos de Coortes , Desenvolvimento Fetal/efeitos dos fármacos , Exposição Materna/efeitos adversos , Material Particulado , Efeitos Tardios da Exposição Pré-Natal/induzido quimicamente , Macrossomia Fetal/etiologia
2.
Appl Opt ; 62(15): 4123-4133, 2023 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-37706726

RESUMO

In this study, an all-optical plasmonic switch based on a metal-insulator-metal (MIM) waveguide coupled to two rectangular cavities that are perpendicularly connected to each other through a vertical stub is proposed and analyzed both theoretically and numerically. Rectangular cavities are filled with a nonlinear Kerr material, and the switching operation is achieved by applying a high-intensity pump input into the MIM waveguide to obtain nonlinear cross-phase modulation (XPM) effect. The proposed structure is designed so that it can realize the switching operation at each of the three telecommunication windows of 850, 1310, and 1550 nm. Realizing the switching operation at these three wavelength bands is accomplished by the Fano resonance. In fact, the Fano resonance is utilized to create a band-stop area that is crucial for building a suitable OFF state for the switching operation at two of the three telecommunication windows of 1310 and 1550 nm. The theoretical and numerical results are obtained using the transmission-line model (TLM) and the finite difference time domain (FDTD) method, respectively, the results of which comply well. The proposed ultra-compact all-optical switch has significant applications in photonic integrated circuits (PICs).

3.
Appl Opt ; 59(33): 10345-10356, 2020 Nov 20.
Artigo em Inglês | MEDLINE | ID: mdl-33361972

RESUMO

The estimation of the performance of terahertz wireless communication under the effect of various weather conditions is vital. In this work, the combined effects of cold weather conditions such as snow, as well as random effects of turbulence and pointing errors (PEs) between the transmitter and receiver, on the performance of terahertz wireless line-of-sight links have been evaluated. The exponentiated Weibull distribution has been employed to derive exact analytical closed-form expressions in the presence of combined channels. Our predictions indicate that snow can have various influences on the average bit error rate (BER) and the average channel capacity of terahertz wireless links. Dry and wet snow, based on its liquid-water content, shows different effects in terms of link parameters such as distance and frequency compared to that of rain. Random turbulence and PEs further deteriorate the link performance. It is concluded that the channel capacity is less affected than the BER under the effects of turbulence and PEs, while snow can have a remarkable effect. All of the predictions through the derived expressions are validated using Monte Carlo simulations.

4.
Appl Opt ; 59(21): 6271-6278, 2020 Jul 20.
Artigo em Inglês | MEDLINE | ID: mdl-32749289

RESUMO

We propose a generalized circuit model for accurate analysis of the extraordinary transmission phenomenon in multilevel stepped slit structures. The multilevel stepped slit consists of some continuous sub-wavelength metal slits with different widths. By applying the proposed circuit model, we study the extraordinary transmission property of this structure for the two cases of ideal and real metal structures. The accuracy of the achieved results is validated by a full wave analysis based on the finite element method. Additionally, since the multilevel slit structure is adjustable by simply manipulating slit parameters such as widths and heights, various kinds of transmission spectra and a different number of resonance points are investigated by the circuit model and the numerical approach. Multilevel stepped slits can be used potentially as bandpass filters or optical attenuators in photonics integrated circuits.

5.
Appl Opt ; 59(14): 4247-4253, 2020 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-32400402

RESUMO

Pulse shaping is important for communications, spectroscopy, and other applications that require high peak power and pulsed operation, such as radar systems. Unfortunately, pulse shaping remains largely elusive for terahertz (THz) frequencies. To address this void, a comprehensive study on the dispersion tunability properties of THz chirped pulses traveling through a dielectric-lined hollow-core waveguide loaded with a helical graphene ribbon is presented. It is demonstrated that there is an optimal compression waveguide length over which THz chirped pulses reach the maximum compression. The optimal length is dependent on the chirp pulse duration. It is shown that by applying an electrostatic controlling gate voltage (Vg) of 0 and 30 V on the helical graphene ribbon, the temporal input pulses of width 8 and 12 ps, propagating through two different lengths, can be tuned by 5.9% and 8%, respectively, in the frequency range of 2.15-2.28 THz.

6.
Appl Opt ; 58(34): 9338-9344, 2019 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-31873523

RESUMO

All-dielectric metasurface absorbers have great potential in many scientific and technical applications. The emerging metasurfaces show strong and versatile capabilities in controlling absorptance, reflectance, and transmittance of electromagnetic waves. In this work, we propose and investigate all-dielectric metasurface absorbers with an equivalent circuit model. In the proposed circuit model, we satisfy the first Kerker condition. To verify the accuracy of the proposed model, the obtained results for an all-dielectric cubic metasurface absorber are compared with the existing experimental data. Moreover, using the proposed circuit model, we propose a hemisphere structure and compare the results of the proposed model with those of full-wave simulations. With this novel structure, we achieve higher absorptance and quality factor in comparison to a cubic one. Additionally, our proposed model reduces the calculation time and needs less memory compared to full-wave simulations. The results of the circuit model have an acceptable agreement with the experimental data and those of full-wave simulations. The proposed circuit model is simple yet general. It provides physical insight into the design and operation of various sub-wavelength structures in the broad frequency range, including THz and visible regions.

7.
J Chem Inf Model ; 57(4): 929-941, 2017 04 24.
Artigo em Inglês | MEDLINE | ID: mdl-28301157

RESUMO

Antimicrobial peptides (AMPs) are part of the innate host defense system, and they are produced by living organisms to defend themselves against infections. Pardaxin is a cationic AMP with antimicrobial and antitumor activities that has potential to be used as a novel antibiotic or for drug delivery in cancer therapy. This peptide acts on the membrane of target cells and can lead to lysis using different mechanisms of action. Here, we conducted 4.5 µs all-atom molecular dynamics (MD) simulations to determine the critical fragments and residues of Pardaxin for early insertion into different lipid bilayers. Our results revealed that the N-terminal domain of the peptide, particularly the Phe 2 and (/or) Phe 3 residues, has a crucial role in early insertion, independent of the type of lipid bilayers.


Assuntos
Peptídeos Catiônicos Antimicrobianos/química , Peptídeos Catiônicos Antimicrobianos/metabolismo , Venenos de Peixe/química , Venenos de Peixe/metabolismo , Bicamadas Lipídicas/metabolismo , Simulação de Dinâmica Molecular , Fosfolipídeos/metabolismo , Difusão , Conformação Proteica
8.
Open Med (Wars) ; 18(1): 20230697, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37197358

RESUMO

Today, in the modern world, people are often exposed to electromagnetic waves, which can have undesirable effects on cell components that lead to differentiation and abnormalities in cell proliferation, deoxyribonucleic acid (DNA) damage, chromosomal abnormalities, cancers, and birth defects. This study aimed to investigate the effect of electromagnetic waves on fetal and childhood abnormalities. PubMed, Scopus, Web of Science, ProQuest, Cochrane Library, and Google Scholar were searched on 1 January 2023. The Cochran's Q-test and I 2 statistics were applied to assess heterogeneity, a random-effects model was used to estimate the pooled odds ratio (OR), standardized mean difference (SMD), and mean difference for different outcomes, and a meta-regression method was utilized to investigate the factors affecting heterogeneity between studies. A total of 14 studies were included in the analysis, and the outcomes investigated were: change in gene expression, oxidant parameters, antioxidant parameters, and DNA damage parameters in the umbilical cord blood of the fetus and fetal developmental disorders, cancers, and childhood development disorders. Totally, the events of fetal and childhood abnormalities were more common in parents who have been exposed to EMFs compared to those who have not (SMD and 95% confidence interval [CI], 0.25 [0.15-0.35]; I 2, 91%). Moreover, fetal developmental disorders (OR, 1.34; CI, 1.17-1.52; I 2, 0%); cancer (OR, 1.14; CI, 1.05-1.23; I 2, 60.1%); childhood development disorders (OR, 2.10; CI, 1.00-3.21; I 2, 0%); changes in gene expression (mean difference [MD], 1.02; CI, 0.67-1.37; I 2, 93%); oxidant parameters (MD, 0.94; CI, 0.70-1.18; I 2, 61.3%); and DNA damage parameters (MD, 1.01; CI, 0.17-1.86; I 2, 91.6%) in parents who have been exposed to EMFs were more than those in parents who have not. According to meta-regression, publication year has a significant effect on heterogeneity (coefficient: 0.033; 0.009-0.057). Maternal exposure to electromagnetic fields, especially in the first trimester of pregnancy, due to the high level of stem cells and their high sensitivity to this radiation, the biochemical parameters of the umbilical cord blood examined was shown increased oxidative stress reactions, changes in protein gene expression, DNA damage, and increased embryonic abnormalities. In addition, parental exposure to ionizing and non-ionizing radiation can lead to the enhancement of different cell-based cancers and developmental disorders such as speech problems in childhood.

9.
Iran J Nurs Midwifery Res ; 28(5): 509-513, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37869687

RESUMO

Background: The Helping Babies Breathe (HBB) program is a simple neonatal resuscitation protocol implemented in low-resource clinical systems. Therefore, it is necessary to train midwives on the implementation of this program and ensure the sustainability of the learned materials. The present study aimed to assess the impact of continued social network-based learning based on midwives knowledge and implementation of the HBB program. Materials and Methods: This randomized controlled field trial was performed on 50 midwives who were selected by the available sampling method. All midwives attended the HBB workshop; thereafter, in the intervention group, the learned materials were reinforced for 3 months using WhatsApp messenger. Data were collected using Objective Structured Clinical Examination (OSCE), which was administered before the HBB program and 3 months later (HBB guide; 2th Ed, 2018). The data were analyzed in SPSS software (version 19) using independent and paired t-tests. Results: Based on the results, the mean knowledge score was not significantly different in both groups (control and intervention) immediately after the workshop. The mean scores of knowledge and skill variations did not decrease significantly in the WhatsApp group during the 3 months; nonetheless, a marked decrease was observed in the control group (t21 = 16.68, p < 0.05). Conclusions: The results of this study pointed out that continued social network-based education promoted the knowledge and skills of health care providers, highlighting the importance of social networks in education.

10.
Adv Biomed Res ; 11: 105, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36660755

RESUMO

The aim of this study was to report a case of the treatment of hydatidiform mole in Coronavirus pandemic in Iranshahr. A 17-year-old primiparous woman with gestational age of 14 weeks presented with unilateral leg swelling and sudden abdominal distension beginning in the night before referring to the health center. In the abdominal examination of the patient by a healthcare provider, the baby's heartbeat was not heard and a mismatch was observed between gestational age and fundal height, which corresponded to approximately 24 weeks of gestation. She was conscious and pale with hematuria and uterine contractions. After inserting two IV lines, the patient immediately underwent monitoring and was visited by a gynecologist. Complete molar pregnancy was diagnosed with an enlarged heterogeneous uterus 180 cm × 90 cm in size and containing 170 mm × 80 mm cysts. The treatment began with vancomycin AMP, hydrocortisone AMP, oseltamivir CAP 75 mg, kaletra CAP 200 mg, and meropenem AMP.

11.
Arch Acad Emerg Med ; 9(1): e56, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34580654

RESUMO

INTRODUCTION: Respiratory viruses spread fast, and some manners have been recommended for reducing the spread of these viruses, including the use of a facemask or respirator, maintaining hand hygiene, and perfoming social distancing. This systematic review aimed to assess the impact of facemasks and respirators on reducing the spread of respiratory viruses. METHODS: We conducted a systematic review using MeSH terms, and reported findings according to PRISMA. PubMed, Embase, Cochrane Library, Scopus, ProQuest, Web of Science(WoS), and Google Scholar were searched for articles published between 2009 and 2020. Two independent reviewers determined whether the studies met inclusion criteria. The risk of bias of studies was assessed using Newcastle-Ottawa (NOS) and Consolidated Standards of Reporting Trials (CONSORT). RESULTS: A total of 1505 articles were initially retrieved and 10 were finally included in our analysis (sample size: 3065). 96.8% of non-infected participants used facemask or respirator in contact with people infected with a respiratory virus, facemask and respirator have a significant effect on reducing the spread of respiratory viruses. CONCLUSION: Evidence support that using a facemask or respirator can reduce the spread of all types of respiratory viruses; therefore, this result can be generalized to the present pandemic of a respiratory virus (SARS-COV-2) and it is recommended to use a facemask or respirator for reducing the spread of this respiratory virus.

12.
Open Med (Wars) ; 16(1): 1628-1641, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34761114

RESUMO

BACKGROUND: The increasing use of new technologies by pregnant women inevitably exposes them to the risks of the electromagnetic fields (EMFs). According to the World Health Organization, EMFs are the major sources of pollutants which harm human health. This study was aimed to evaluate the effects of EMF exposure on abortion. METHODS: Web of Science, Cochrane Library, MEDLINE, PubMed, EMBASE, Scopus, and Google Scholar were searched until 2021. Pooled odds ratio (OR) with 95% confidence interval (CI) was estimated using a random-effects model. Heterogeneity was explored using Cochran's Q test and I 2 index. A meta-regression method was employed to investigate the factors affecting heterogeneity between the studies. The Newcastle-Ottawa scale was used to assess the credibility of the studies. RESULTS: Eligible studies (N = 17) were analyzed with a total of 57,693 participants. The mean maternal age (95% CI) was 31.06 years (27.32-34.80). Based on meta-analysis results, the pooled estimate for OR of EMF with its effects was 1.27 (95% CI: 1.10-1.46). According to the results of meta-regression, sample size had a significant effect on heterogeneity between studies (p: 0.030), but mother's age and publication year had no significant effect on heterogeneity (p-value of bothwere >0.05). No publication bias was observed. CONCLUSION: Exposure to EMFs above 50 Hz or 16 mG is associated with 1.27× increased risk of abortion. It may be prudent to advise women against this potentially important environmental hazard. Indeed, pregnant women should receive tailored counselling.

13.
BMC Bioinformatics ; 10: 318, 2009 Oct 04.
Artigo em Inglês | MEDLINE | ID: mdl-19799800

RESUMO

BACKGROUND: Complex networks are studied across many fields of science and are particularly important to understand biological processes. Motifs in networks are small connected sub-graphs that occur significantly in higher frequencies than in random networks. They have recently gathered much attention as a useful concept to uncover structural design principles of complex networks. Existing algorithms for finding network motifs are extremely costly in CPU time and memory consumption and have practically restrictions on the size of motifs. RESULTS: We present a new algorithm (Kavosh), for finding k-size network motifs with less memory and CPU time in comparison to other existing algorithms. Our algorithm is based on counting all k-size sub-graphs of a given graph (directed or undirected). We evaluated our algorithm on biological networks of E. coli and S. cereviciae, and also on non-biological networks: a social and an electronic network. CONCLUSION: The efficiency of our algorithm is demonstrated by comparing the obtained results with three well-known motif finding tools. For comparison, the CPU time, memory usage and the similarities of obtained motifs are considered. Besides, Kavosh can be employed for finding motifs of size greater than eight, while most of the other algorithms have restriction on motifs with size greater than eight. The Kavosh source code and help files are freely available at: http://Lbb.ut.ac.ir/Download/LBBsoft/Kavosh/.


Assuntos
Algoritmos , Biologia Computacional/métodos , Software , Escherichia coli/genética , Redes Neurais de Computação , Saccharomyces cerevisiae/genética
14.
JMIR Res Protoc ; 7(2): e33, 2018 Feb 08.
Artigo em Inglês | MEDLINE | ID: mdl-29422451

RESUMO

BACKGROUND: Due to the increased number of users of mobile phones, tablets, and other devices over the past few years, concerns about the potential impact of mobile phones on health are growing. The influence of mobile phone exposure on male fertility has been studied in recent years. Other research has shown that electromagnetic fields (EMFs) increase macrophages in the corpus luteum and growing follicles. Due to conflicting results among studies and since no systematic review has been performed to analyze the effects of radiofrequency EMF exposure from electronic devices on the fertility system in recent years, this evidence-based study is necessary. OBJECTIVE: The main objectives of this study are to determine the best evidence associated with the influence of radiofrequency EMFs on the fertility system and to provide insight into a potential mechanism using our observations. METHODS: In this systematic review, the databases and gray literature will be searched with no language and date limitation. The following databases will be searched: Cochrane Library, MEDLINE, PubMed, EMBASE, CINAHL, ProQuest, Scopus, Science Direct, Google Scholar, and other Persian databases. The combination of the Medical Subject Heading terms "radiofrequency electromagnetic" and "male reproductive system" or "female reproductive system" will be searched. Observational study designs will be included but case reports, case series, reviews, and letters to the editor will be excluded. Papers selected for retrieval will be evaluated by two independent referees for methodological validation before entering a review using the Newcastle-Ottawa Scale for nonrandomized studies and cohort studies. RESULTS: The results of this study will be submitted to a peer-reviewed journal for publication and also presented at PROSPERO. CONCLUSIONS: This systematic review will provide evidence-based data on the effect of radiofrequency EMFs on the fertility system. This article will also classify the harmful effect of radiofrequency waves on primary and secondary infertility. This study could be useful for decreasing infertility. This is important because the rate of infertility is growing, leading to negative outcomes for couples and the health care system. TRIAL REGISTRATION: PROSPERO CRD42017072462; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=72462 (Archived by WebCite at http://www.webcitation.org/6wjiE9R2q).

15.
Electron Physician ; 10(5): 6843-6852, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29997770

RESUMO

BACKGROUND AND AIM: Epilepsy is a common neurological disorder in pregnancy, which is associated with increased maternal and fetal adverse outcomes. This study aimed to explore the reproductive healthcare needs of women with epilepsy before, during and after childbirth. METHODS: This was a qualitative study using a content analysis method. The study population was marital women with epilepsy in reproductive age (15-45 years) referred to Imam Hossein Hospital, Tehran, Iran. Participants were 16 women chosen using purposive sampling with the consideration of maximum variation in sampling. Semi-structured interviews were held with the participants until data saturation was reached. The data were analyzed using the content analysis method. The MAXQDA software, version 2010, was used for the management of data. RESULTS: The data analysis led to the development of two categories. The first one is named 'resilience against threats to safe pregnancy' and has the following subcategories: (1) real physical complications and perceived (mental) conditions due to unwanted pregnancies, (2) the predisposing factors of anxiety related to safe pregnancy, (3) perceived consequences of pregnancy', and (4) the approach to encounter perceived consequences of pregnancy. The second category is called 'adverse experiences under inefficient supportive systems' and has the following subcategories: (1) the insufficiency of reproductive healthcare services for women with epilepsy, (2) doubt about the advantages and disadvantages of breastfeeding, (3) stigma as a block to the treatment of the postpartum depression, and (4) playing the motherhood role under the shadow of self-esteem to lack of self-esteem. CONCLUSION: In the prenatal, natal and postnatal duration, because of supportive system disruption and not receiving proper consultation, participants were often worried about not being able to get favorable conditions for safe pregnancy and controlling process of their pregnancy. Therefore, they often experienced unwanted pregnancy. They were also concerned about the adverse fetal outcomes. In postpartum period, they often experienced postpartum depression and were very doubtful about breastfeeding.

16.
Iran J Pharm Res ; 17(Suppl): 89-100, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29796033

RESUMO

Hypoactive sexual desire disorder (HSDD) is the most prevalent female sexual dysfunction (FSD) and its bio-psychosocial multifactorial etiology justifies its multifaceted treatment. In Persian Medicine (PM), the weakness of the main organs (heart, brain and liver) is one of the important causes of lack of sexual desire; hence, their strengthening is a priority during treatment. Melissa officinalis is one of the medicinal plants with tonic characteristics for the main organs in PM and was used for treatment in this study. The aim of the present study was to evaluate the efficacy and safety of M. officinalis in the improvement of HSDD in women. Eighty nine (89) eligible women suffering from decreased sexual desire were randomly assigned to groups. The participants received medication (500 mg of aqueous extract of M. officinalis) or placebo 2 times a day for 4 weeks. Changes in scores of desire, arousal, lubrication, orgasm, satisfaction and pain were evaluated at the end of 4 weeks of treatment using the Female Sexual Function Index (FSFI) questionnaire in the two groups. Forty three participants completed the study. The increase in desire (P < 0.001), arousal (P < 0.001), lubrication (P < 0.005), orgasm (P < 0.001), satisfaction (P < 0.001), pain (P < 0.002) and FSFI total score (P < 0.001) in the M. officinalis group was significantly more than that of the placebo group. The willingness to continue treatment was significantly higher in the M. officinalis as compared to the placebo group (P < 0.001). M. officinalis may be a safe and effective herbal medicine for the improvement of HSDD in women.

17.
Seizure ; 52: 147-153, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-29035798

RESUMO

PURPOSE: Epileptic women are faced with many sexual challenges in their life due to medical and non-medical factors. The present study was conducted to assess sexual function in epileptic women and its related factors. METHOD: The present cross-sectional study was conducted on 196 epileptic married women of reproductive age who were members of the Iranian Epilepsy Association and were selected continuously over six months through convenience sampling. The data collection tools included the Female Sexual Function Index (FSFI) and questions about the causes of sexual dysfunction. The statistical tests including: Chi-square, t-test, one-way ANOVA, linear and logistic regression. RESULTS: According to the results, 74.5% of the participants suffered from sexual dysfunction and scored the lowest in terms of the orgasm and sexual satisfaction dimensions. The factors associated with sexual dysfunction included age over 40, poor education, more than 15 years of marriage, poor economic status, history of infertility and irregular menstruation, several seizures per month, nocturnal seizures, triple or multiple drug therapies and not using anticonvulsant drugs that have no effect on the liver enzymes. From participants' perspective, the most common causes of sexual dysfunction include anxiety and stress, emotional problems with the spouse, dissatisfaction with the experience of unwanted sex and the type of drugs used. CONCLUSIONS: Since the incidence of sexual dysfunction in epileptic women is high and multifactorial, it is recommended for experts and health service providers to not only seek to better control the patients' seizures, but also assess them in terms sexual function.


Assuntos
Epilepsia/complicações , Epilepsia/psicologia , Disfunções Sexuais Fisiológicas/etiologia , Disfunções Sexuais Psicogênicas/etiologia , Adolescente , Adulto , Estudos Transversais , Epilepsia/epidemiologia , Feminino , Humanos , Irã (Geográfico) , Pessoa de Meia-Idade , Estatísticas não Paramétricas , Inquéritos e Questionários , Adulto Jovem
18.
Artigo em Inglês | MEDLINE | ID: mdl-24800034

RESUMO

INTRODUCTION: Despite achievements in treating acute lymphoblastic leukemia (ALL) in children, its burden on the psychosocial status of patients is not well defined yet. This study aims to determine the impact of childhood ALL on emotional and behavioral pattern of the patients compared to healthy peers as assessed by the Child Behavior Checklist (CBCL). METHODS: We studied 100 children with ALL (aged 6-12 years) and 100 healthy sex/age peers as control group. All ALL cases were treated by chemotherapy alone. After being informed by a psychologist, parents in both groups were asked to complete the CBCL form. Final results were then compared between the two study groups. RESULTS: There were no significant differences between the groups regarding the general characteristics. Failure in school performance, restricted group activity and less social relations were significantly higher in the ALL cases. Total competence was also significantly disturbed for the ALL cases. Social problems, attention problems, aggressive behavior, externalization, attention deficit/hyperactivity, conduct and oppositional defiant problems were significantly more prevalent in healthy children. Somatic problems were significantly higher in the ALL cases. CONCLUSION: Our findings suggest that except for somatic problems, behavioral problems among the ALL cases are significantly less frequent than the healthy peers, which may stem from better care and support from the families. Our unique findings emphasize the need for more research on the psychosocial status of children with cancer in future.

19.
Artigo em Inglês | MEDLINE | ID: mdl-23929873

RESUMO

Given a multiset of colors as the query and a list-colored graph, i.e., an undirected graph with a set of colors assigned to each of its vertices, in the NP-hard list-colored graph motif problem the goal is to find the largest connected subgraph such that one can select a color from the set of colors assigned to each of its vertices to obtain a subset of the query. This problem was introduced to find functional motifs in biological networks. We present a branch-and-bound algorithm named RANGI for finding and enumerating list-colored graph motifs. As our experimental results show, RANGI's pruning methods and heuristics make it quite fast in practice compared to the algorithms presented in the literature. We also present a parallel version of RANGI that achieves acceptable scalability.


Assuntos
Algoritmos , Biologia Computacional/métodos , Processamento de Imagem Assistida por Computador/métodos , Software , Animais , Bovinos , Cor , Humanos , Camundongos , Mapas de Interação de Proteínas , Ratos , Reprodutibilidade dos Testes
20.
Int J Bioinform Res Appl ; 9(6): 584-94, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24084239

RESUMO

One of the fundamental problems in computational biology is the construction of physical maps of chromosomes from the hybridisation experiments between unique probes and clones of chromosome fragments. Before introducing the shotgun sequencing method, Partial Digest Problem (PDP) was an intractable problem used to construct the physical maps of DNA sequence in molecular biology. In this paper, we develop a novel Genetic Algorithm (GA) for solving the PDP. This algorithm is implemented and compared with well-known existing algorithms on different types of random and real instances data, and the obtained results show the efficiency of our algorithm. Also, our GA is adapted to handle the erroneous data and their efficiency is presented for the large instances of this problem.


Assuntos
Algoritmos , Sequência de Bases , Genômica/métodos , Mapeamento Cromossômico/métodos
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