Internal Jugular Catheter Malposition in a Patient With End Stage Renal Disease: a Case Report

A 30-year-old female with end-stage renal disease was a candidate for dual lumen catheter placement. After catheter insertion, O2 saturation measurement of the aspirated blood from the catheter was similar to that of arterial blood. They referred the patient to our hospital after 48 hours. Diagnostic procedures revealed that the tip of the catheter had entered the pleural cavity. Catheter removal in the CPR room resulted in hemorrhagic shock. The patient was resuscitated and stabilized and sent to the operating room. A laceration found at the junction of right jugular and right subclavian veins and was surgically repaired. The patient was discharged after ten days without any complication

Algorithm to Rank Web Pages Inspired by Ant Colony Algorithm

The general search engines represent various results in their lists, which is very time consuming to check.. One way to limit the search engine results is to use ranking pages algorithm in web. One of the most important ranking algorithms of web pages in the internet is known as “PageRank”, which works on the web-graph structure. In this article, an extended version of the “PageRank ” algorithm taking into consideration the degree of user interest in web pages and the ant colony algorithm is presented. Simulation results indicate that in the recommended algorithm ranks are closer to the real data; they produce more distinguished ranks, and have a less amount of errors

Antioxidant activity some endemic Iranian medicinal plants (Lamiaceae)

Oxidation, deterioration, and microbial reactions occurring in food products may cause economic loss. Deterioration of lipids is catalysed by different internal and external factors, such as free radicals, metal ions, light, and heat. In this study, some of the Iranian endemic plants were collected from their natural location in Chaharmahal va Bakhtiari. By maceration method with methanol solvent, extracts were obtained. Antioxidant activity of methanolic extracts was evaluated by three antioxidant assays: DPPH, FRAP & TEAC. In DPPH

Experience of individuals with unconsummated marriage in Iran: A qualitative content analysis

Background: Sex is one of the important aspects of marriage and a way of expressing intimacy. Unconsummated marriage is a common problem whose prevalence is about 1.5% in Iran and can significantly influence marital life. Objective: This study aimed to assess the unconsummated marriage in a qualitative mode to offer new and beneficial solutions resulting from a better understanding. Materials and Methods: In this qualitative study, conventional content analysis was used. Data collection and analysis were done from April 2013 to April 2014 with 11 women and 5 men participating, who were referred to the sexual disorders clinic of Tehran Psychiatric Institute and Rasool Akram hospital of Tehran, Iran. The researchers examined the files of people referred to these clinics with the diagnosis of unconsummated marriage. Our tool for data collection was a semi-structured interview. 2 experienced faculty psychiatrists recorded all the information based on standards for reporting qualitative research guidelines. Data were analyzed using qualitative technique and coding. Guba and Lincoln criteria was used for data validity. Results: The codes of the participants' experiences were classified into 6 main categories, which include self-concept, intrapersonal factors, partner's problem, preparedness for sex, emotional relationship between couples, and the effects of unconsummated marriage on the participant's life. Conclusion: Significant experiences among women included excessive anxiety toward the society and their spouses, and among men were weakness and guilt. Being unable to have sex negatively affected their view of life and caused great harm to their self-perception. Participants personality traits and their self-concept, and attitude toward their partners were important issues

β-Sitosterol Alters the Inflammatory Response in CLP Rat Model of Sepsis by Modulation of NFκB Signaling

Purpose. Sepsis originates from the host inflammatory response, especially to bacterial infections, and is considered one of the main causes of death in intensive care units. Various agents have been developed to inhibit mediators of the inflammatory response; one prospective agent is β-sitosterol (βS), a phytosterol with a structure similar to cholesterol. This study is aimed at evaluating the effects of βS on the biomarkers of inflammation and liver function in cecal ligation and puncture- (CLP-) induced septic rats. Methods. Thirty male Wistar rats were divided equally into six groups as follows: sham, CLP, CLP+dexamethasone (DX, 0.2 mg/kg), CLP+βS (1 mg/kg), CLP+imipenem (IMI, 20 mg/kg), and CLP+IMI (20 mg/kg)+βS (1 mg/kg). Serum levels of IL-1β, IL-6, IL-10, AST, ALT, and liver glutathione (GSH) were assessed by ELISA. Liver expression levels of TNF-α and NF-κBi mRNAs were evaluated by RT-qPCR. Results. Serum concentrations of IL-1β, IL-6, IL-10, ALT, and AST and mRNA levels of TNF-α and NF-κBi were all significantly higher in septic rats than in normal rats (p<0.05). Liver GSH content was markedly lower in the CLP group than that in the sham group. βS-treated rats had remarkably lower levels of IL-1β, IL-6, IL-10, TNF-α, NF-κBi, AST, and ALT (51.79%, 62.63%, 41.46%, 54.35%, 94.37%, 95.30%, 34.87%, and 46.53% lower, respectively) and greater liver GSH content (35.71% greater) compared to the CLP group (p<0.05). Conclusion. βS may play a protective role in the septic process by mitigating inflammation. This effect is at least partly mediated by inhibition of the NF-κB signaling pathway. Thus, βS can be considered as a supplementary treatment in septic patients

Progress in targeting PTEN/PI3K/Akt axis in glioblastoma therapy: Revisiting molecular interactions

Glioblastoma (GBM) is one of the most malignant cancers of central nervous system and due to its sensitive location, surgical resection has high risk and therefore, chemotherapy and radiotherapy are utilized for its treatment. However, chemoresistance and radio-resistance are other problems in GBM treatment. Hence, new therapies based on genes are recommended for treatment of GBM. PTEN is a tumor-suppressor operator in cancer that inhibits PI3K/Akt/mTOR axis in diminishing growth, metastasis and drug resistance. In the current review, the function of PTEN/PI3K/Akt axis in GBM progression is evaluated. Mutation or depletion of PTEN leads to increase in GBM progression. Low expression level of PTEN mediates poor prognosis in GBM and by increasing proliferation and invasion, promotes malignancy of tumor cells. Moreover, loss of PTEN signaling can result in therapy resistance in GBM. Activation of PTEN signaling impairs GBM metabolism via glycolysis inhibition. In contrast to PTEN, PI3K/Akt signaling has oncogenic function and during tumor progression, expression level of PI3K/Akt enhances. PI3K/Akt signaling shows positive association with oncogenic pathways and its expression similar to PTEN signaling, is regulated by non-coding RNAs. PTEN upregulation and PI3K/Akt signaling inhibition by anti-cancer agents can be beneficial in interfering GBM progression. This review emphasizes on the signaling networks related to PTEN/PI3K/Akt and provides new insights for targeting this axis in effective GBM treatment

Graphene oxide nanoarchitectures in cancer biology: Nano-modulators of autophagy and apoptosis

© 2023 Elsevier B.V.Nanotechnology is a growing field, with many potential biomedical applications of nanomedicine for the treatment of different diseases, particularly cancer, on the horizon. Graphene oxide (GO) nanoparticles can act as carbon-based nanocarriers with advantages such as a large surface area, good mechanical strength, and the capacity for surface modification. These nanostructures have been extensively used in cancer therapy for drug and gene delivery, photothermal therapy, overcoming chemotherapy resistance, and for imaging procedures. In the current review, we focus on the biological functions of GO nanoparticles as regulators of apoptosis and autophagy, the two major forms of programmed cell death. GO nanoparticles can either induce or inhibit autophagy in cancer cells, depending on the conditions. By stimulating autophagy, GO nanocarriers can promote the sensitivity of cancer cells to chemotherapy. However, by impairing autophagy flux, GO nanoparticles can reduce cell survival and enhance inflammation. Similarly, GO nanomaterials can increase ROS production and induce DNA damage, thereby sensitizing cancer cells to apoptosis. In vitro and in vivo experiments have investigated whether GO nanomaterials show any toxicity in major body organs, such as the brain, liver, spleen, and heart. Molecular pathways, such as ATG, MAPK, JNK, and Akt, can be regulated by GO nanomaterials, leading to effects on autophagy and apoptosis. These topics are discussed in this review to shed some lights towards the biomedical potential of GO nanoparticles and their biocompatibility, paving the way for their future application in clinical trials