Epidemiology and Death-Related Factors of Oncology Patients in Emergency Department

Introduction: Accurate diagnosis and proper treatment of oncology patients presented to emergency department(ED) can dramatically enhance their quality of life and decrease their mortality rate. Therefore, the presentstudy aimed to evaluate these patients from an epidemiologic point of view as well as identifying death-relatedfactors. Methods: In this retrospective cross-sectional study, all the oncology patients presented to ED duringone year were evaluated using census sampling. A checklist that consisted of clinical and demographic data aswell as patients outcome was filled for each patient. Using SPSS 21, multivariate stepwise logistic regressionanalysis was done to identify independent death-related factors. Results: 568 patients with the mean age of53.64§18.99 years were studied (56.5% male). The most common locations of tumor were brain (32.7%) andgastrointestinal tract (27.1%). Pain (32.5%) was the most frequent chief complaint on ED arrival. The overallmortality rate of studied patients was 154 (27.1%), 25 (16.2%) of them in ED. Among the evaluated factors,marital status, visiting on a weekday, arrival to ED via ambulance, type of cancer, stage of cancer, presence ofmetastasis, being under treatment with chemo-radiotherapy, chief complaint on arrival, tumor location, andadmission to intensive care unit (ICU) correlated significantly with in-hospital mortality. Conclusion: The mostcommon type of cancer in the studied patients was solid, located in the brain or gastrointestinal tract, in stage IIIand IV, metastatic, and under chemo-radiotherapy. Independent death-related factors included ICU admission,presentation with loss of consciousness or bleeding, arrival via ambulance, cancer stage > II, neuroendocrineand genitourinary location of cancer, and being under chemo-radiotherapy

Susceptibility of Leishmania major to Veronica persica Poir. extracts - In vitro and in vivo assays

Leishmania major is an intracellular parasite generally responsible for cutaneous leishmaniasis (CL), one of the most encountered skin diseases especially in Pakistan, Iran, Iraq, and Saudi Arabia. Current treatment options are not ideal, due to unwanted side effects and increasing resistance and availability is often limited in developing countries. Medicinal plants continue to attract attention because of their beneficial effects in the prevention or/and accelerating the healing process of various diseases. In this study, in vitro and in vivo susceptibility of L. major to Veronica persica Poir. extract, a medicinal plant with many applications, has been evaluated. Antileishmanial activity of plant extract was investigated both on cultured L. major promastigotes and in mice challenged with L. major. Animals were divided into three groups including control (without any treatment), test (treated with plant extract) and glucantime (the reference drug) treated groups. After treatments, skin lesion sizes and body weights of animals were checked during 4 weeks. The potential of the plant extract in decreasing the number of parasites in spleen cells of animals as well as inducing the nitric oxide (NO) production by macrophage cells was also investigated. In vitro tests showed that the plant extract was able to reduce the survival time of promastigotes in a concentration-dependent manner. In vivo experiments also revealed a significant influence of V. persica extracts on accelerating the healing process as well as reducing the overall disease burden in animal model by inducing NO production in macrophage cells. Our findings indicated the promising potential of V. persica extract as an ideal candidate in the treatment of CL caused by L. major

In vitro and in vivo assessment of free radical scavenging and antioxidant activities of Veronica persica Poir

With the appearance of new disorders along with inability of some conventional therapies for the treatment of diseases without any side effects, the discovery of safe and efficient therapeutic agents is of utmost importance in the medical area. In this context, medicinal plants as promising therapeutic candidates can provide a reliable and efficient profile. Since free radicals are at the center of various disorder pathways, reducing their production or complete removal of these chemical species could be advantageous for prevention and treatment of many diseases. In this experiment, free radical scavenging and antioxidant activities of Veronica persica Poir., a known medicinal plant, were evaluated using in vitro and in vivo assays. Chemical characterization results showed a high phenolic content in the V. persica methanol extract. In addition, in vitro assays including DPPH radical-scavenging assay, nitric oxide-scavenging activity assay, hydrogen peroxide scavenging test and bleomycin-dependent DNA damage test revealed significant antioxidant power and radical scavenging capacity of this plant. In accordance, in vivo experiments showed inhibitory effects of the methanol extract on lipid peroxidation, a main cause of cell damage. Our findings revealed the promising potential of this plant in reducing free radicals through different pathways. Moreover, our data suggested a correlation between the high phenolic content of the V. persica extract and its free radical scavenging and antioxidant activities

Opioid Receptors gene polymorphism and heroin dependence in Iran

Introduction: Genes often have multiple polymorphisms that interact with each other and the environment in different individuals. Variability in the opioid receptors can influence opiate withdrawal and dependence. In humans, A118G Single Nucleotide Polymorphisms (SNP) on μ-Opioid Receptor (MOR), 36 G > T in κ-Opioid Receptor (KOR), and T921C in the δ-Opioid Receptor (DOR) have been found to associate with substance dependence. Methods: To investigate the association between opioid receptors gene polymorphism and heroin addiction, 100 control subjects with no history of opioid use, and 100 heroin addicts (50 males and 50 females) in Tehran (capital of Iran), were evaluated. A118G, 36 G > T, and T921C SNPs on the MOR, KOR, DOR genes, respectively, were genotyped by sequencing. Results: We found no differences in either allele or genotype frequency for MOR, KOR and DOR genes SNPs between controls and subjects addicted to heroin. Conclusion: The relationships among polymorphisms may be important in determining the risk profile for complex diseases such as addiction, but opioid addiction is a multifactorial syndrome which is partially hereditary and partially affected by the environment. © 2015

Opioid Receptors gene polymorphism and heroin dependence in Iran

Introduction: Genes often have multiple polymorphisms that interact with each other and the environment in different individuals. Variability in the opioid receptors can influence opiate withdrawal and dependence. In humans, A118G Single Nucleotide Polymorphisms (SNP) on μ-Opioid Receptor (MOR), 36 G > T in κ-Opioid Receptor (KOR), and T921C in the δ-Opioid Receptor (DOR) have been found to associate with substance dependence. Methods: To investigate the association between opioid receptors gene polymorphism and heroin addiction, 100 control subjects with no history of opioid use, and 100 heroin addicts (50 males and 50 females) in Tehran (capital of Iran), were evaluated. A118G, 36 G > T, and T921C SNPs on the MOR, KOR, DOR genes, respectively, were genotyped by sequencing. Results: We found no differences in either allele or genotype frequency for MOR, KOR and DOR genes SNPs between controls and subjects addicted to heroin. Conclusion: The relationships among polymorphisms may be important in determining the risk profile for complex diseases such as addiction, but opioid addiction is a multifactorial syndrome which is partially hereditary and partially affected by the environment. © 2015

3D Dental Subsurface Imaging Using Enhanced Truncated Correlation-Photothermal Coherence Tomography

With dental caries being the most common disease in human, development of accurate and sensitive dental imaging technologies for early caries detection and routine monitoring are crucial for preventive dentistry. However, radiographic technologies fall short of these objectives due to low sensitivity for small lesions and use of ionizing radiation. Here, dental enhanced Truncated Correlation-Photothermal Coherence Tomography (eTC-PCT) is presented as the first 3D tomographic thermophotonic dental imaging modality capable of monitoring and characterizing tooth demineralization with high sensitivity and without ionizing radiation. To this end, eTC-PCT is applied to teeth with natural defects, and artificially generated controlled early caries and surface erosion. Additionally, eTC-PCT performance for dental imaging is compared with other thermophotonic technologies. The results demonstrate that, eTC-PCT is capable of detecting and monitoring early demineralization in teeth at clinically applicable laser power levels, and visualizing the relative progression and extent of lesions through 3D reconstruction.M.A.S

Nanopharmaceuticals and nanomedicines currently on the market: Challenges and opportunities

There has been a revolution in nanotechnology and nanomedicine. Since 1980, there has been a remarkable increase in approved nano-based pharmaceutical products. These novel nano-based systems can either be therapeutic agents themselves, or else act as vehicles to carry different active pharmaceutical agents into specific parts of the body. Currently marketed nanostructures include nanocrystals, liposomes and lipid nanoparticles, PEGylated polymeric nanodrugs, other polymers, protein-based nanoparticles and metal-based nanoparticles. A range of issues must be addressed in the development of these nanostructures. Ethics, market size, possibility of market failure, costs and commercial development, are some topics which are on the table to be discussed. After passing all the ethical and biological assessments, and satisfying the investors as to future profitability, only a handful of these nanoformulations, successfully obtained marketing approval. We survey the range of nanomedicines that have received regulatory approval and are marketed. We discuss ethics, costs, commercial development and possible market failure. We estimate the global nanomedicine market size and future growth. Our goal is to summarize the different approved nanoformulations on the market, and briefly cover the challenges and future outlook. © 2019 2018 Future Medicine Ltd