To assess the effect of sensory stimulation, dilute solutions of

To assess the effect of sensory stimulation, dilute solutions of odorant or

mucus in water were applied to the sensory epithelia and the response of the neural networks was measured. Electrode traces were sampled at 20 kHz and the data were preprocessed by applying IIR Butterworth filters to remove 60 Hz power interference harmonics. High-frequency components (>5 kHz) that do not correspond to biological processes were removed using FIR LF filter with linear phase. Paired association procedure Each snail was tested for a baseline Inhibitors,research,lifescience,medical attraction to a dilute solution of each odorant before any other exposure to the odorant. After the initial test, each Euglandina was fed a prey snail (juvenile Cantareus, Inhibitors,research,lifescience,medical their regular diet in the lab) and 1–2 drops of a dilute odorant solution were dropped onto its radula as it ate. Because the procerebra were laid whole across the

electrodes, the electrodes recorded neural activity from superficial cells in the cell mass layer. Dilute solutions of four naturally occurring odorants were used. We chose 10% solutions of cinnamon oil, almond Inhibitors,research,lifescience,medical oil, bay oil, and anise oil as these are complex mixtures with multiple volatile compounds, and since they are used in food were likely to be safe for the snails to eat. A different odorant solution was used for each behavioral experiment so that the odor would be novel Inhibitors,research,lifescience,medical in the baseline condition. The snails

were housed in a different room from where the feeding trials took place, which was also different from the room in which the test trials were run. The radula is the tooth-lined SCH772984 tongue that snails use to draw food into their mouths. Cantareus snails were fed minced carrots as their regular diet in the lab, and for the experiments, 1–2 drops of the dilute Inhibitors,research,lifescience,medical odorant were dropped on their radulas as they ate the carrot. The snails were tested again for attraction to the odorant 24–48 h after each training session in which eating was paired with exposure to an odorant. Tests for formation of olfactory associations The Non-specific serine/threonine protein kinase ability of Euglandina and Cantareus to learn to approach a novel odor through association of the odor with food was tested using three methods. In the first method, a cotton swab soaked in odorant (a 10% solution of either cinnamon oil or almond oil) was placed at the upper left corner of a 21 × 27.5 cm transparency sheet. The test snail was placed in the lower right corner of the same sheet facing the swab and at least 20 cm away from it. The snails were allowed to crawl until they left the transparency sheet. The mucus trails of the snails were visualized by sprinkling the sheets with charcoal powder and rinsing under running water. The snail’s sticky mucus trails trapped the dark powder so it remained on the sheet as the rest of the powder was washed away (Karowe et al. 1993).

Finally, Buckner and Logan52 suggest that it is important to dist

Finally, Buckner and Logan52 suggest that it is important to distinguish between selective and nonselective recruitment, because nonselective recruitment reflects dysfunction in performing cognitive tasks. They argue that older adults are less able to recruit appropriate frontal regions for task performance and the areas they do recruit are less appropriate for the memory task they must perform. Thus, Buckner and Logan see dedifferentiated patterns of recruitment as dysfunctional.

Plasticity The notion that the brain is plastic and can reorganize with age was Inhibitors,research,lifescience,medical quite startling to behavioral researchers in cognitive aging, who had focused primarily on (i) demonstrating memory system changes versus invariance in cognitive function with age; and (ii) learning how to “repair” cognition through

providing external cognitive cues, aids, or supports. We now have compelling evidence that the brain docs not just reflect passive Inhibitors,research,lifescience,medical decline, but is a dynamic structure that is reactive to experience, evidencing both gains and losses with age. Indeed, Kempermann et al72 have demonstrated growth of new neurons in response to complex Inhibitors,research,lifescience,medical environments in aged rats, suggesting that stimulating experiences may enhance the organization and function of the brain. At this point, the neuroimaging literature on aging has just begun to uncover some of the activation patterns that characterize aging. This issue is a most exciting and challenging area of research – to understand how a process such as click here dedifferentiation, a term descriptively applied to imaging results, might reflect changes in neuronal plasticity. Methodological issues in integrating functional brain data with behavioral data on aging Before Inhibitors,research,lifescience,medical we discuss integration of brain and behavioural data in cognitive aging, we should note that there are many technical difficulties involved in relating patterns of cognitive behaviors across different age groups to patterns of brain activations. We do not have space to Inhibitors,research,lifescience,medical go into detail about these problems,

but here are some important issues to keep in mind when interpreting results from neuroimaging studies on aging. First, old and young adults may differ in the strength of signal that is detectable from PET and fMRI studies. The signal detected by both PET and fMRI depends upon a vascular change in the small arterioles of the cerebral circulation. It is unclear to what Dichloromethane dehalogenase extent aging impairs that hemodynamic reactivity and affects the activation signal. Furthermore, pathological changes, such as small, clinically silent infarcts of cerebral tissue, could have significant effects on the ability to detect activation in the aging brain. The atrophy of cerebral tissue with aging presents additional problems for functional neuroimaging, sometimes referred to as “partial volume” effects.

This work was partly

supported by the Ministry of Educat

This work was partly

supported by the Ministry of Education, Culture, Sports, Science, and Technology, Japan and Grants for scientific research (Program for Enhancing Systematic Education in Graduate School).
A retrospective case–control study evaluated the change in weight over a 2-year time interval following unilateral and staged bilateral STN DBS in PD. The Institutional Review Board at the University of Alabama at Birmingham approved the study. Written consent was not obtained individually from patients because the data were acquired retrospectively Inhibitors,research,lifescience,medical and deidentified. All patients were diagnosed with idiopathic PD by a movement disorder specialist using UK Brain Bank criteria (Daniel and Lees, 1993). Data on weight were reviewed from 43 consecutive

patients with moderate-to-advanced PD who underwent unilateral STN DBS contralateral to their most affected Inhibitors,research,lifescience,medical hemibody. Improvements in motor function in following unilateral STN DBS in this cohort of patients at 1 year postoperatively are described in a prior study (Walker et al. 2009b). Among these patients, 25 subsequently underwent staged bilateral STN DBS when clinically necessary within 2 years of their first electrode placement. These 25 patients who had the staged procedure on the opposite side of the brain within 2 years of their initial surgery are referred to as “staged bilateral STN” Inhibitors,research,lifescience,medical patients throughout. Patients who did not undergo the staged bilateral procedure within 2 years of their initial surgery are referred to as “unilateral STN” patients, regardless of whether they have subsequently undergone the staged bilateral procedure after Inhibitors,research,lifescience,medical the 2-year follow-up period. Weights were recorded at baseline and at 3, 6, 12, and 24 months following surgery. A second baseline weight was determined for patients Inhibitors,research,lifescience,medical who received staged placement of contralateral STN DBS, defined as the weight immediately prior to their second surgery. The staged bilateral STN

DBS patients had a minimum of 3 months of subsequent follow up to evaluate weight change. Nine patients whose weight data were not available or incomplete were excluded. The initial age for the determination of baseline weight in the DBS patients was defined as the age of the subject on the day of STN DBS placement. All weights were measured during routine clinic appointments on the same electronic those scale. PD controls without DBS were identified in the University of Alabama at Birmingham Movement Disorders Registry, group matching to achieve similar age, gender, and disease severity using duration of disease and levodopa-equivalent dose (LED) per day. All controls were diagnosed and selleck followed by a movement disorders neurologist at University of Alabama. Controls were treated with levodopa and had at least 24 months of routine clinical follow-up to establish a change in weight over time.

Whilst determination of specific CD4 TEM cell longevity was beyon

Whilst determination of specific CD4 TEM cell longevity was beyond the scope of this study; they were absent at four months following last detection of viable bacilli, indicating a lifespan of

such as the SLO; according with reports that responses to mycobacteria are initiated in the LN [43] and [44]. Despite their CX 5461 short-lived nature, CD4 TEM cells appear to make a significant contribution to inhibitors protective immunity, as the reduction in bacterial burden was reduced by up to 60% in their absence. CD4 TEM have been reported as important mediators of protection in M. tuberculosis [45] Verteporfin solubility dmso malaria [46] and Leishmania [38], among other infections. We acknowledge, however, that a direct protective, rather than associative role of these cells remains to be shown; but at present, the lack of technologies

to allow the sorting of live T cells based on cytokine production, preclude the TEM adoptive transfer experiments required to definitively demonstrate such a role. It is intriguing to speculate whether at least a proportion of the protection afforded by BCG during childhood is due to persisting bacilli and associated TEM. There is evidence that BCG may persist for many years in humans [37], [47], [48],

[49], [50], [51] and [52] and together with the observed waning of immune responses to BCG through childhood [36]; this may represent gradual clearance of bacilli and associated T cells. Long-term memory, however, is considered dependent on the generation of TCM responses. At present, few reports directly identify an antigen-specific CD4 TCM cells induced in mice by BCG alone [19] and [22]; some describe TCM-like cells after clonal expansion induced by prime-boost vaccination, challenge or reinfection [14], [21] and [53]. In humans, TCM may only appear after contraction of the BCG-specific TEM response [20]. This situation is confounded by our incomplete understanding of TCM cell phenotypes. Conflicting evidence is often published, and there is clearly below substantial plasticity between memory T cell phenotypes (reviewed in [42] and [54]). Unequivocal identification of these cells is also complicated by the weak expression of characterisitic cells markers (e.g. CCR7) and their often mutual expression by the naïve T cell population. ICS by flow cytometry is often used, but has a distinct effector bias relying immediate cytokine production, and so is unlikely optimal for TCM detection [55] and [56]. To circumvent this, we performed class II-peptide tetramer staining, but were unable to detect any CD4+CD62Lhi antigen-spepcific TCM cells.

Although preferences for both the depth and mode of information p

Although preferences for both the depth and mode of information provision were variable amongst patients and families, they evaluated the quality of communication with staff primarily through inter-personal skills, rather than the prognostic accuracy of information that was imparted. However a need to balance professional uncertainty with patients’ and families’ needs for consistency in information was evident. Where patients were unlikely to MEK activity recover

from their stroke, Inhibitors,research,lifescience,medical then communication was perceived by staff to be both limited and difficult. “… you’ve actually got nothing to say to them. It’s not that you’re writing them off it’s just that your mind is elsewhere” “Yes, but you can see how people would perceive that as being “oh they’re withdrawing and just leaving us”” “… I have tried to at least acknowledge “I’m sorry your father’s so ill and obviously we won’t be seeing him now” or something like that. It actually is quite difficult Inhibitors,research,lifescience,medical to say. [3:35]” Whilst this may reflect the priorities within the stroke service, such as working to maximise patient recovery with rehabilitation as the predominant stroke service model, the potential negative impact of this difficulty on family members was recognised. “…she said the thing that she found very Inhibitors,research,lifescience,medical difficult when visiting her father was … when

it was clear that he wasn’t going to be alright,

they all ignored the family … she felt that Inhibitors,research,lifescience,medical suddenly they weren’t spoken to whereas they could see other families having lots of meetings and talking and they were almost embarrassing to have on the ward. Probably because the therapists didn’t know what to say or do. Inhibitors,research,lifescience,medical [3:29]” Early integration of palliative care Staff recognised the importance of integrating palliative care before the final stages of dying, addressing “the quality of life, not particularly end of life… even through the acute and the rehab phase, we would be looking at ‘not end of life’ palliative care” [1:4]. Emphasising that palliative care need not be end-of-life care was mirrored in the use of palliative approaches to resolve symptoms such as fatigue: Metalloexopeptidase “Because a lot of the patients who have the tiredness and fatigue are those who do really well in rehab, so you can’t say that they are in palliative care because they’re not. [3:54]” Extending palliative care earlier than the terminal stages of a dying trajectory characterised palliation as a positive intervention strategy, shifting the emphasis from “there’s nothing else we can do” whereas this is about “actually, there’s a lot we can do” [3:8]. Where a patient may be labelled as ‘palliative’ by some members of a stroke team, active interventions such as physiotherapy was still appropriate.

The DNA polymerases and editing enzymes replicate the genome at a

The DNA polymerases and editing enzymes replicate the genome at a blazing speed with an amazing and near-perfect accuracy. The machinery that is responsible for genome duplication introduces one error for every 100 million nucleotides that

it copies (10-8 error per base pair for the mammalian genome).2-4 This error rate translates into approximately 30 new DNA variants in each offspring (de Inhibitors,research,lifescience,medical novo variants, as they are absent in the parents’ genomes).2-4 Given that the human species has evolved over 3.7 to 6.6 million years5 and over billions of meiotic divisions (genome duplications), and in view of the introduction of approximately 30 de novo variants per meiosis, Inhibitors,research,lifescience,medical one might surmise the enormous diversity of the human genome. Introduction of the new DNA

sequence variants (DSVs) throughout the evolution of humans has followed the population growth. The rapid expansion of the human population during the last 10,000 years, about 400 generations, has ultimately introduced a very large number of DSVs into the population genome.6 Consequently, the vast majority of DSVs in the population genome are relatively new. These new variants, having had an inadequate time to spread among the population compared to older variants, are less common and often rare. Likewise, the new variants have not had adequate exposure to evolutionary Inhibitors,research,lifescience,medical Inhibitors,research,lifescience,medical selection pressure or a population drift; therefore, they generally are expected to exert SRT1720 in vitro larger biological effects. This is in contrast to ancient DSVs, which have had the chance to spread out and be subjected to selection pressure. Consequently, ancient variants are typically common and have small and often clinically negligible effects, as those

with large effect sizes are typically eliminated over years Inhibitors,research,lifescience,medical of evolution. The Plethora of DSVs in an Individual Genome/Exome Each genome contains approximately 3.2 billion nucleotides, of which approximately 4 million nucleotides are variants as compared to the reference genome. Therefore, each individual has a variant nucleotide for every 800 nucleotides in the genome. With the current population level, every nucleotide is expected to be polymorphic even though the vast majority of such variants are rare due to their very modern origins.6, 7 Since de novo variants are introduced in each offspring, no two individuals, with the exception of monozygotic twins, are genetically identical at the DNA sequence level. This diversity also extends to each individual: because of the error rate of the DNA replication machinery and replication of certain cells, the replicating cells in an individual are a genetic mosaic. Of the approximately 4 million DSVs in each genome, about 3.5 million involve only a single nucleotide and hence are called single nucleotide variants (SNVs) or single nucleotide polymorphisms (SNPs).

Moreover, a scale measuring Spirituality is included in the quest

Moreover, a scale measuring Spirituality is included in the questionnaire, due to its potential importance for the treatment of alcoholics. The Sadness dimension that is relevant to

this study refers to feelings of loneliness and distress, thinking about loved ones and frequent crying. Genotyping DNA was extracted from buccal mucosa cell samples. Automated selleck chemicals purification Inhibitors,research,lifescience,medical of genomic DNA was conducted by means of the MagNA Pure LC system using a commercial extraction kit (MagNA Pure LC DNA isolation kit; Roche Diagnostics, Mannheim, Germany). The VNTR polymorphism of the DAT1/SLC6A3 gene (rs#28363170) was amplified from genomic DNA using polymerase chain reaction (PCR) and the primers 5′-TGTGGTGTAGGGAACGGCCTGAG-3′ and 5′-CTTCCTGGAGGTCACGGCTCAAGG-3′. In brief, after an initial denaturation

for 3 min at 94°C, 39 cycles of denaturing at 94°C for 45 sec, annealing at 62°C for 30 sec, and extension at 72°C for 30 sec were followed by a final extension at 72°C for 5 min. PCR amplification was carried out in a final volume of 20 μl consisting of 50 ng genomic DNA, 0.2 mM of each deoxyribonucleotide, Inhibitors,research,lifescience,medical 1 pmol of sense and antisense primers, 1 U of GoTaq-Polymerase Inhibitors,research,lifescience,medical (Promega, Mannheim, Germany), and the enzyme supplier’s buffer. Amplification products were analyzed by 2% agarose gel electrophoresis. The sizes of the 8, 9, 10, and 11 repeats were 360, 400, 440, and 480 bp, respectively. Genotyping of COMT Val158Met SNPs (rs#4680) was performed by real time PCR (RT-PCR) using fluorescence Inhibitors,research,lifescience,medical melting curve detection analysis by means of the Light Cycler System (Roche Diagnostics, Mannheim, Germany). Details of the PCR protocol are described elsewhere (Reuter et al. 2006). The primers and hybridization probes used (TIB MOLBIOL, Berlin, Germany) were as follows: Inhibitors,research,lifescience,medical forward primer: 5′-GGGCCTACTGTGGCTACTCA-3′; reverse primer: 5′-GGCCCTTTTTCCAGGTCTG-3′; sensor hybridization probe: 5′-ATTTCGCTGGCATGAAGGACAAG-fluorescein-3′; anchor hybridization probe: 5′-LCRed640-TGTGCATGCCTGACCCGTTGTCA-phosphate-3′. Statistical analysis We investigated the influence of COMT and DAT1 on ANPS personality dimensions by means

of analysis of variance (ANOVA). On the genotype levels, the independent factors had three levels each (COMT: Val/Val, Val/Met, and Met/Met; DAT1: 9R/9R, 9R/10R, and 10R/10R). For statistical analyses focusing on gene × gene interactions, COMT and isothipendyl DAT1 genotypes were dichotomized to enhance statistical power. Individuals with the COMT Met/Met and Val/Met genotypes were combined (Met+ and Met− for Val/Val) based on findings that the Val/Val genotype is associated with PEM (Reuter and Hennig 2005) and the Met allele with NEM (Enoch et al. 2003). The DAT1 10R/10R and 10R/9R genotypes were dichotomized for the presence (10R+) or absence (10R−) of the DAT1 10R allele as DAT1 expression is higher in the presence of the 10R allele (Fuke et al. 2001; Mill et al. 2002). Age was negatively correlated with Sadness (r = −.

There are only a few reports regarding the use of HCQ in osteoart

There are only a few reports regarding the use of HCQ in osteoarthritis. Indeed, there is only one report on the use of HCQ in knee osteoarthritis. Herval de Lacerda Bonfante et al.12 in a controlled, randomized, double-blind study assessed the effectiveness of HCQ on knee osteoarthritis

and concluded that although their two groups of HCQ and placebo exhibited improvement, HCQ had no superiority over the placebo in the treatment of knee osteoarthritis. Bryant, Desrosier, and Carpenter13 treated Inhibitors,research,lifescience,medical 8 patients with erosive hand osteoarthritis and obtained satisfactory results in 6 patients, all of whom showed improvement in a period ranging from 7 weeks to 7 months. Gianantonio Saviola et al.14 compared the efficacy of Clodronate (a bisphosphonate) with HCQ for Inhibitors,research,lifescience,medical treating active erosive osteoarthritis of the hand and demonstrated

that while the former GSK1120212 probably played an efficacious role in the treatment of active erosive osteoarthritis, the latter seemed to be ineffective. Vuolteenaho et al.15 found that HCQ suppressed nitric oxide production induced by Inhibitors,research,lifescience,medical IL-1 β in osteoarthritic cartilage and concluded that this drug could be useful in treating this disease. The present study was performed to investigate the effect of HCQ on mild to moderate knee osteoarthritis symptoms. The average age of our patients was less than that in the Herval de Lacerda Bonfante12 study (48 years vs. 60 years). The lower age of our patients may be due to the affliction of younger people by knee osteoarthritis Inhibitors,research,lifescience,medical in Iran compared with some other countries.16,17 In contrast to the Herval de Lacerda Bonfante study, the results of our study showed statistically significant improvement in the total WOMAC score, WOMAC pain score, WOMAC stiffness score, and WOMAC function score in the patients using HCQ. Although drug side effects statistically were more frequent in the HCQ group, the symptoms were mild to moderate and Inhibitors,research,lifescience,medical were improved immediately after the discontinuation of HCQ. The results of the present study showed that HCQ

improved the symptoms of knee osteoarthritis in our patients. Nevertheless, no whatever conclusion can be drawn apropos the disease-modifying action of HCQ because the focus of the study was merely on clinical changes. Larger new clinical trials are required to evaluate not only the symptoms but also the joint space if one is to demonstrate the validity of the use of HCQ as a disease-modifying drug. Conclusion HCQ conferred significant improvement in the symptoms of mild to moderate knee osteoarthritis in our patients and can, therefore, be deemed useful in the treatment of knee osteoarthritis. Acknowledgment This study was supported by a research grant from the Vice Chancellor for Research, Mashhad University of Medical Sciences. Conflicts of Interest: None declared.
Dear Editor, Seifsafari Sh, Firoozabadi A, Ghanizadeh A, Salehi AR. A Symptom Profile Analysis of Depression in a Sample of Iranian Patients during 2011.

Advanced directives are not yet sufficiently widespread in France

Advanced directives are not yet sufficiently widespread in France, especially on the situation of people with Alzheimer’s disease or related illnesses. The participative aspect of the decision-making process is therefore often lacking in such complex clinical cases, and must be adapted to the hierarchical relationships within the team, which tends to limit the ability of nursing care professionals to express themselves in front of the clinician. To address this essential matter in research, Inhibitors,research,lifescience,medical the analysis of ongoing clinical situations seems to us the most pragmatic approach. Sharing the different practical

experiences of numerous teams concerning dementia patients at the

end of life may help to establish markers for strengthening the decision to introduce or withhold, withdraw or continue Inhibitors,research,lifescience,medical treatment for an acute complication. Methods/design This is a cross sectional multicentre study of clinical cases concerning all medical and medico-social institutions admitting people with advanced dementia, in an area with a population of 2.2 million in the east of France (Burgundy and Franche-Comté). Of the 92 institutions contacted, 67 Inhibitors,research,lifescience,medical (72.8%) responded favourably to our request (University hospitals, general hospitals, local hospitals and homes for the elderly). The protocol was approved by the clinical ethics committee of Besançon University Hospital. This study was funded

by the National Clinical Research Programme (PHRC) of the French Ministry of Health. Each department Inhibitors,research,lifescience,medical was invited to consider all eligible patients suffering from advanced dementia of the buy Kinase Inhibitor Library Alzheimer type presumed to be at the end of life (presenting with cachexia and more rapid change in their general state over the last three months) and presenting with acute Inhibitors,research,lifescience,medical complications which may endanger life and challenge the relevance of continuing, changing or withdrawing, introducing or not introducing a treatment likely to alter survival: organic no or systemic infection resisting a first line treatment; occurrence of probable pulmonary embolism; pending stroke; phase IV obliterating arteriopathy of the lower limbs usually requiring deobstruction, a bypass or an amputation; heart failure occurring in treated congestive heart failure; acute kidney failure; respiratory decompensation occurring in treated respiratory failure; signs of appearance or progression of cancer. The study concerned the patients present in the departments and those who had died in the two months prior to the study.

In this setting, the buzz is clearly neurologic in

origin

In this setting, the buzz is clearly neurologic in

origin. Comparisons with other disease states such as diabetic neuropathy do not adequately characterize the symptoms presented by these 2 cases. Diabetic neuropathy commonly presents with a broad range of positive symptoms typically described as “pins and needles” and prickling or tingling. Our patients presented with a novel complaint of vibratory sensation in the perineum. In both cases, the associated symptoms and Selleckchem CCI 779 physical examination findings support a diagnosis of prostatitis. “Buzzing” has been used as a descriptor in Libraries multiple other disease states with multifactorial etiologies similar to those proposed for CP/CPPS and might represent a novel description within the vast prostatitis symptomatology. It is clearly necessary

for more research to be completed as to the pathogenesis of prostatitis and its symptoms, and we hope these Panobinostat data allow clinicians to better recognize and manage patients with this disorder. Moldwin R: Taris Biomedical–investigator, medical advisory board; Afferent Pharmaceuticals–investigator; Urigen Pharmaceuticals–investigator, medical advisory board. “
“Sacral neuromodulation (ie, InterStim) has been shown to be an effective treatment for a variety of bladder control issues. It was first introduced by Tanagho and Schmidt in 1981 and approved by the Food and Drug Administration for the treatment of urge incontinence in 1991. In 1999, it was approved for the treatment of urinary retention and urinary frequency.1 This

technique involves the surgical implantation of a device in the abdomen or buttock region, which is then attached to an electrode to stimulate sacral nerves.2 InterStim uses electrical impulses to modulate afferent sacral signals through 17-DMAG (Alvespimycin) HCl inhibition. These impulses modulate the nerves and muscles used to control the bladder.3 This reversible treatment option has been shown to be successful in existing research. Specifically, current research has shown that sacral neuromodulation can be used to successfully treat urinary urge incontinence, urgency frequency, urinary retention, and even fecal incontinence.2 Recent research focuses primarily on sacral neuromodulation in conjunction with non-neurogenic urinary tract dysfunction.1 However, a study by Wallace et al3 demonstrated the effectiveness of sacral neuromodulation on patients with underlying neurologic disease, ranging from multiple sclerosis and Parkinson disease to spina bifida and spinal cord disease. This research seems to indicate that InterStim therapy can be successful in cases of nonobstructive bladder control issues in patients with neurogenic or non-neurogenic causes. EM is a 24-year-old woman who presented with a history urinary retention brought on by stress since early premenstrual childhood. She reported multiple episodes in which she would become spontaneously unable to urinate and have painless retention.