Aseptic Meningitis with Urinary Retention: A Case Report

Introduction. Aseptic meningitis is serious inflammation of the meninges caused by agents including viruses, non-viral pathogens, non-infectious conditions and chemicals. Case Presentation. This study concerns the case of a 16-year-old healthy Greek female with persistent fever, mild headache and acute urinary retention, secondary to aseptic meningitis. Physical examination revealed no distinct signs of meningeal irritation. The urinary bladder was palpable, painless and over-distended. Serology carried out for common viruses was as follows: CMV IgG (−), CMV IgM (−), HSV IgG (−), HSV IgM (+), VZ IgG (+), VZ IgM (−), EBV IgG (−) and EBV IgM (+). During recovery in hospital, three trials of removing a urinary catheter were carried out; during the first two attempts the patient was unable to urinate and had a loss of bladder sensation. On the third attempt the patient had modest bladder perception but she left a post-voiding residual, and was instructed to perform bladder self-catheterization. Seven days after being discharged the patient underwent a full recovery. Conclusion. There are few reports concerning aseptic meningitis together with acute urinary retention. A number of these cases concern so-called “meningitis-retention syndrome,” which implies an underlying CNS mechanism, while others concerned an underlying peripheral nervous system mechanism

Functional membrane androgen receptors in colon tumors trigger pro-apoptotic responses in vitro and reduce drastically tumor incidence in vivo

<p>Abstract</p> <p>Background</p> <p>Membrane androgen receptors (mAR) have been implicated in the regulation of cell growth, motility and apoptosis in prostate and breast cancer. Here we analyzed mAR expression and function in colon cancer.</p> <p>Results</p> <p>Using fluorescent mAR ligands we showed specific membrane staining in colon cell lines and mouse xenograft tumor tissues, while membrane staining was undetectable in healthy mouse colon tissues and non-transformed intestinal cells. Saturation/displacement assays revealed time- and concentration-dependent specific binding for testosterone with a K_Dof 2.9 nM. Stimulation of colon mAR by testosterone albumin conjugates induced rapid cytoskeleton reorganization and apoptotic responses, even in the presence of anti-androgens. The actin cytoskeleton drug cytochalasin B effectively inhibited the pro-apoptotic responses and caspase-3 activation. Interestingly, <it>in vivo </it>studies revealed that mAR activation resulted in a 65% reduction of tumor incidence in chemically induced Balb/c mice colon tumors.</p> <p>Conclusion</p> <p>Our results demonstrate for the first time that functional mARs are predominantly expressed in colon tumors and that their activation results in induction of anti-tumor responses <it>in vitro </it>and extensive reduction of tumor incidence <it>in vivo</it>.</p

Membrane androgen receptor activation triggers down-regulation of PI-3K/Akt/NF-kappaB activity and induces apoptotic responses via Bad, FasL and caspase-3 in DU145 prostate cancer cells

<p>Abstract</p> <p>Background</p> <p>Recently we have reported membrane androgen receptors-induced apoptotic regression of prostate cancer cells regulated by Rho/ROCK/actin signaling. In the present study we explored the specificity of these receptors and we analyzed downstream effectors controlling survival and apoptosis in hormone refractory DU145-prostate cancer cells stimulated with membrane androgen receptor-selective agonists.</p> <p>Results</p> <p>Using membrane impermeable conjugates of serum albumin covalently linked to testosterone, we show here down-regulation of the activity of pro-survival gene products, namely PI-3K/Akt and NF-κB, in DU145 cells. Testosterone-albumin conjugates further induced FasL expression. A FasL blocking peptide abrogated membrane androgen receptors-dependent apoptosis. In addition, testosterone-albumin conjugates increased caspase-3 and Bad protein activity. The actin cytoskeleton drug cytochalasin B and the ROCK inhibitor Y-27632 inhibited FasL induction and caspase-3 activation, indicating that the newly identified Rho/Rock/actin signaling may regulate the downstream pro-apoptotic effectors in DU145 cells. Finally, other steroids or steroid-albumin conjugates did not interfere with these receptors indicating testosterone specificity.</p> <p>Conclusion</p> <p>Collectively, our results provide novel mechanistic insights pointing to specific pro-apoptotic molecules controlling membrane androgen receptors-induced apoptotic regression of prostate cancer cells and corroborate previously published observations on the potential use of membrane androgen receptor-agonists as novel anti-tumor agents in prostate cancer.</p

Minimal Change Disease Associated with Malignant Epithelioid Mesothelioma: A Case Report

We report the case of a 64 year old male patient with a recent diagnose of pulmonary nodules with pleural thickening who was admitted to the nephrology department of our hospital for further evaluation of nephrotic syndrome (NS). Malignant epithelioid mesothelioma (MEM) was diagnosed after pleural biopsy while the renal biopsy showed minimal change disease (MCD) with acute tubular necrosis and interstitial lymphoplasmacytic infiltrate. MCD is the most common cause of nephrotic syndrome in children while it accounts for a smaller proportion of NS in adults. The underlying cause of MCD is unclear (Cameron, 1987). Evidence so far suggests that T-cell dysfunction results in the production of a circulating factor directly affecting the glomerular capillary wall with consequent foot process fusion. MCD as paraneoplastic syndrome is common in hematological disorder while the incidence in lung pulmonary malignancies is rare. Early recognition leads to an early diagnosis of malignancy improving the outcome and diminishing the associated co-morbidities

Individuals with schizophrenia and relevant psychotic disorders: A clinical population with increased incidence for involuntary admission due to suicidal behavior

Objective: Investigation of socio-demographic and clinical characteristics of individuals involuntary admitted in the Psychiatric Hospital of Cyprus with suicidal behavior. Material and Method: A descriptive correlation study with cross-sectional comparisons was performed in a sample of 40 individuals (Sampling period 12/2016–02/2018). Data collection was conducted via individual interviews using a structured questionnaire, encompassing demographic and clinical characteristics, along with the PANSS, HAM-D, YMRS and HAM-A scales to assess the intensity of psychotic, depressive, manic and anxiety symptoms. Results: The majority of the sample were Greek-Cypriots, 32 males and 8 females, between 25–34 years. 26 of them had a positive history of substance use, while 20 of them were meeting criteria for dual diagnosis. The most frequent clinical diagnosis was schizophrenia (15%) and relevant psychotic disorders (65%). The most common symptom coexisting with suicidal behavior was substance abuse (50%), while 35% of sample reported no adherence to medication during the period before suicidal behavior. The most frequent methods of suicide attempt were fall from height (20%) and overdose (20%). Positive history of substance use was positively and strongly associated with suicidal behavior (x2, p<0.001, Cramer’s V=0.629), as well as the type of admission diagnosis (x2, p[removed

Membrane Androgen Receptor Down-Regulates c-Src-Activity and Beta-Catenin Transcription and Triggers GSK-3beta-Phosphorylation in Colon Tumor Cells

Background/Aims: Functional membrane androgen receptors (mARs) have recently been described in colon tumor cells and tissues. Their activation by specific testosterone albumin conjugates (TAC) down-regulates the PI-3K/Akt pro-survival signaling and triggers potent pro-apoptotic responses both, in vitro and in vivo. The present study explored the mAR-induced regulation of gene products implicated in the tumorigenic activity of Caco2 colon cancer cells. Methods: In Caco2 human colon cancer cells transcript levels were determined by RT-PCR, protein abundance and phosphorylation by Western blotting and confocal microscopy, as well as cytoskeletal architecture by confocal microscopy. Results: We report time dependent significant decrease in Tyr-416 phosphorylation of c-Src upon mAR activation. In line with the reported late down-regulation of the PI-3K/Akt pathway in testosterone-treated colon tumors, GSK-3beta was phosphorylated at Tyr-216 after long term stimulation of the cells with TAC, a finding supporting the role of this kinase to promote apoptosis. PCR analysis revealed significant decrease of beta-catenin and cyclin D1 transcript levels following TAC treatment. Moreover, confocal laser scanning microscopic analysis disclosed co-localization of beta-catenin with actin cytoskeleton. It is thus conceivable that beta-catenin may participate in the reported modulation of cytoskeletal dynamics in mAR stimulated Caco2 cells. Conclusions: Our results provide strong evidence that mAR activation regulates late expression and/or activity of the tumorigenic gene products c-Src, GSK-3beta, and beta-catenin thus facilitating the pro-apoptotic response in colon tumor cells

The effect of nasal douching by hypertonic 2.3% sea water with algae extracts on the concentration of epidermal growth factor, transforming growth factor-α and interleukin-8 in nasal secretions of patients with nasal polyposis following endoscopic surgical treatment

Objective. To investigate epidermal growth factor (EGF), transforming growth factor (TGF)- a and interleukin (IL)-8 production in nasal mucosa irrigated with hypertonic 2.3% solution with algae extracts, in comparison to 0.9% NaCl during the first two weeks after surgery for nasal polyposis (NP), in relation to symptoms and local findings. Methods. This prospective study included 20 NP patients postoperatively irrigated with hypertonic and 20 with isotonic solution. We evaluated symptoms (NSS), endoscopic findings (ES) and mediator levels in nasal secretions before and after irrigation. Results. Following treatment, NSS and ES were significantly lower in the hypertonic solution group (p = 0.023; p < 0.001, respectively). The increase in the EGF and the decrease in the TGF-a and IL-8 concentration were higher in the hypertonic group (p < 0.001 for all mediators). Conclusion. Irrigation with a hypertonic solution was found to be more effective than an isotonic solution in nasal mucosa reparation