Miracle-dz/UniFAR-FTUs huggingface dataset:
Impact of Donepezil on Caregiving Burden for Patients With Alzheimer's Disease

Comprehensive Alzheimer's disease (AD) treatment should address caregiver well-being. We predicted that caregiver burden would be lower among caregivers of AD patients who received donepezil relative to caregivers of patients not treated with donepezil. A self-administered, nationwide survey of AD caregivers was used to match caregivers of patients treated with donepezil (n = 274) to caregivers of patients not treated with donepezil (n = 274). The Caregiver Burden Scale measured time demands and distress linked to commonly performed caregiving tasks. Respondents were three-quarters female, with an average age of 60 years. Results demonstrated that donepezil caregivers reported significantly lower scores on difficulty of caregiving. This difference remained when statistical controls for multiple patient and caregiver variables were imposed. However, selection factors must be recognized as a possible explanation for differences. The groups reported no difference on the time-demand subscale. In conclusion, better management of AD symptoms through donepezil treatment may reduce the burden of caregiving, providing physicians with a pharmacologic approach to improving quality of life for AD patients and their families.
Episodic excretion of ethanol during chronic intragastric ethanol infusion in the male rat: continuous vs. cyclic ethanol and nutrient infusions.

Continuous intragastric infusion of ethanol has been reported to result in episodic daily blood alcohol concentrations in male rats (Tsukamoto et al., 1985). We have used a total enteral nutrition (TEN) model to study the effects of chronic alcohol exposure on blood and urine alcohol concentrations in adult male Sprague Dawley rats (300 g). Two TEN models were studied: 1) the continuous model in which a complete diet was infused i.g. for 24 h/day; or 2) the cyclic model in which TEN was infused intragastrically for 12 h/day (i.e., only during the dark phase of the lighting cycle). In the continuous model, blood alcohol concentrations (BACs) were determined at 0900 h each morning and were found to vary from day to day in an episodic fashion, with values ranging from less than 10 mg/dl to greater than 500 mg/dl. The urine alcohol concentrations (UACs) were also episodic and closely tracked those of serum, such that the 24-h UACs were excellent predictors of the BACs taken at 0900 h. Both BACs and UACs increased from values below 10 mg/dl to greater than 500 mg/dl, and then decreased back to below 10 mg/dl with a mean peak-to-peak interval of 6 +/- 0.9 days. In the cyclic model, daily UACs were also episodic (i.e., had a daily variation) and very closely resembled those of the continuous model. We have proposed that ethanol metabolism during experimental intragastric ethanol infusion in the rat occurs via a system characterized by time-dependent pharmacokinetics.
Long‐term lithium treatment

ABSTRACT– The prophylactic effect of lithium was studied prospectively in 63 patients with recurrent affective disorders. Lithium treatment was started at recovery from a current episode of illness when the patients were able to participate in the decision to start long‐term treatment. The median treatment time was 23.7 months and the mean serum lithium concentration approx. 0.63 mmol/1. Comparison with equally long control periods before lithium showed that the treatment resulted in statistically significant reductions in number of episodes, number of months ill, and number of months hospitalized. There were 40 (63%) responders (frequency of episodes during lithium lower than before lithium) and 23 (37 %) non‐responders (frequency of episodes during lithium higher than or the same as before lithium). Females responded slightly better than males. Responders scored significantly higher than non‐responders in the psychasthenia and muscle tension subscales of the Karolinska Hospital Personality Inventory. Both responders and non‐responders showed falls in CPRS during lithium treatment, the fall was statistically significant in the responders. During the first 4 months of lithium treatment the responders showed a significant rise in serum calcium, while serum calcium remained unaltered in the non‐responders. These variables may be predictive of response to long‐term lithium treatment. The low numbers of patients who discontinued treatment and the even serum levels of lithium suggest that good compliance to treatment was achieved with the present approach.
Quaternary ammonium block of mutant Na+ channels lacking inactivation: features of a transition‐intermediate mechanism

1 The quaternary ammonium (QA) lidocaine derivative QX‐314 (2‐(triethylamino)‐N‐(2,6‐dimethylphenyl)‐acetamide) induces internal pore blockade of single cardiac Na+ channels enzymatically modified (papain) to eliminate fast inactivation. The mechanism involves dual, interacting blocking modes (rapid and discrete) with binding domains deep in the pore from the cytoplasmic mouth, and where the rapid blocked configuration serves as a transition‐intermediate for the development of discrete block. The primary goals of this study were to test for this mechanism in a recombinant Na+ channel genetically engineered to selectively lack fast inactivation, and if present, to explore the underlying structural features. 2 Fast inactivation was removed in rat skeletal muscle μ1 Na+ channels (RSkM1) with an IFM‐QQQ mutation in the cytoplasmic III‐IV interdomain (QQQ). QQQ was expressed in Xenopus oocytes and single‐channel activity was studied in cell‐free, inside‐out membrane patches. Application of QX‐314 (QX, 0‐4 mM) to the cytoplasmic membrane surface caused two distinct modalities of single‐channel blockade: reduction of unitary current and interruptions of current lasting tens of milliseconds. These are consistent with rapid and discrete pore block, respectively. The voltage and concentration dependence of block indicates that the modes interact and have binding sites that share a deep location in the pore, at ≈65 % of the membrane electric field in from the cytoplasmic mouth. 3 Mutation of phenylalanine (F1579) in domain IV‐S6, critical in local anaesthetic block, to alanine in QQQ (QQQ‐F1579A) disabled discrete block but notably failed to alter rapid block, single‐channel gating and slope conductance. 4 Amplitude distribution analysis was applied to long bursts (> 50 ms) of QQQ‐F1579A activity to investigate the kinetics of rapid block. Computed rapid blocking and unblocking rate constants are 42 000 ± 18 000 M−1 ms−1 and 82 ± 22 ms−1, respectively (n= 3, ‐20 mV). 5 The results support a general transition‐intermediate mechanism that governs internal QX and local anaesthetic pore block of voltage‐gated Na+ channels and provide insight into underlying structural features.
Competency measurements: testing convergent validity for two measures.

AIM This paper is a report of a study to investigate whether the Australian National Competency Standards for Registered Nurses demonstrate correlations with the Finnish Nurse Competency Scale. BACKGROUND Competency assessment has become popular as a key regulatory requirement and performance indicator. The term competency, however, does not have a globally accepted definition and this has the potential to create controversy, ambiguity and confusion. Variations in meaning and definitions adopted in workplaces and educational settings will affect the interpretation of research findings and have implications for the nursing profession. METHOD A non-experimental cross-sectional survey design was used with a convenience sample of 116 new graduate nurses in 2005. The second version of the Australian National Competency Standards and the Nurse Competency Scale was used to elicit responses to self-assessed competency in the transitional year (first year as a Registered Nurse). FINDINGS Correlational analysis of self-assessed levels of competence revealed a relationship between the Australian National Competency Standards (ANCI) and the Nurse Competency Scale (NCS). The correlational relation between ANCI domains and NCS factors suggests that these scales are indeed used to measure related dimensions. A statistically significant relationship (r = 0.75) was found between the two competency measures. CONCLUSION Although the finding of convergent validity is insufficient to establish construct validity for competency as used in both measures in this study, it is an important step towards this goal. Future studies on relationships between competencies must take into account the validity and reliability of the tools.
Survival Benefits With Artificial Liver Support System for Acute-on-Chronic Liver Failure

Abstract The artificial liver support system (ALSS) offers the potential to improve the prognosis of patients with acute-on-chronic liver failure (ACLF). However, the literature has been inconsistent on its survival benefits. We aimed to conduct a time series-based meta-analysis of randomized clinical trials (RCTs) and observational studies which examined differences in mortality in ACLF patients treated with ALSS or not. MEDLINE, EMBASE, OVID, and COCHRANE library database were systemically searched up to December 2014. Quality of included studies was evaluated using the Jadad score. The outcome measure was mortality at different follow-up endpoints. Odds ratios (ORs) and survival curve data were pooled for analysis. Ten studies, 7 RCTs, and 3 controlled cohorts were enrolled, involving a total of 1682 ACLF patients, among whom 842 were treated with ALSS. ALSS was found to reduce the risk of short-term (1-month and 3-month) mortality for patients with ACLF by nearly 30%. Randomized trials and observational studies provided good internal and external validity respectively. The combined Kaplan–Meier curves showed a consistent pattern of findings. Meta-analysis also suggested that ALSS might reduce medium-term (6-month and 1-year) mortality risk by 30% and long-term (3-year) mortality risk by 50% in ACLF patients. ALSS therapy could reduce short-term mortality in patients with ACLF. Meanwhile, its impacts on medium- and long-term survival seem to be promising but remained inconclusive. Clinical utility of this system for survival benefit may be implied.
Studies of Nondefective Adenovirus 2-Simian Virus 40 Hybrid Viruses VIII. Association of Simian Virus 40 Transplantation Antigen with a Specific Region of the Early Viral Genome

Two of the five nondefective adenovirus 2 (Ad2)-simian virus 40 (SV40) hybrids induce SV40 transplantation resistance in immunized hamsters. These two hybrids, Ad2+ND2 and Ad2+ND4, contain 32 and 43% of the SV40 genome, respectively. The pattern of induction of SV40 transplantation antigen (TSTA) by the various hybrids differentiates TSTA from both SV40 U and T antigens. Since the SV40 RNA induced by both these hybrids is early SV40 RNA, these findings confirm that TSTA is an early SV40 function. By combining available data on SV40 antigen induction by these hybrids with electron microscopy heteroduplex mapping studies, the DNA segment responsible for the induction of SV40 TSTA can be inferred to lie in the region between 0.17 and 0.43 SV40 units from the site on the SV40 chromosome cleaved by E. coli R1 restriction endonuclease.
Ultra-long range distributed fibre sensing using virtually transparent propagation

Distributed fibre sensors provide unique capabilities for monitoring large infrastructures with high resolution. Practically, all these sensors are based on some kind of backscattering interaction. A pulsed activating signal is launched on one side of the sensing fibre and the backscattered signal is read as a function of the time of flight of the pulse along the fibre. A key limitation in the measurement range of all these sensors is introduced by fibre attenuation. As the pulse travels along the fibre, the losses in the fibre cause a drop of signal contrast and consequently a growth in the measurement uncertainty. In typical single-mode fibres, attenuation imposes a range limit of less than 30km, for resolutions in the order of 1–2 meters. An interesting improvement in this performance can be considered by using distributed amplification along the fibre [1]. Distributed amplification allows having a more homogeneous signal power along the sensing fibre, which also enables reducing the signal power at the input and therefore avoiding nonlinearities. However, in long structures (> 50 km), plain distributed amplification does not perfectly compensate the losses and significant power variations along the fibre are to be expected, leading to inevitable limitations in the measurements. From this perspective, it is simple to understand intuitively that the best possible solution for distributed sensors would be offered by a virtually transparent fibre, i.e. a fibre exhibiting effectively zero attenuation in the spectral region of the pulse. In addition, it can be shown that lossless transmission is the working point that allows the minimization of the amplified spontaneous emission (ASE) noise build-up.
Molecular characterization of enteric adenovirus genotypes 40 and 41 identified in children with acute gastroenteritis in Kolkata, India during 2013–2014

Human enteric adenovirus (HAdV) belonging to species F is one of the most common pathogens responsible for infantile gastroenteritis worldwide. This study was initiated to estimate prevalence and types of HAdV among children below 5 years of age seeking health care facility for treatment of diarrhea in Kolkata, Eastern India. A total of 1,562 stool specimens were tested during 2013–2014 and among them, 185 (11.8%) were positive for enteric HAdV. Maximum number of positive cases were observed among children between 6 and 12 months of age (13.9%). HAdV infection occurred at a low frequency throughout the year, with an increased incidence in the month of March–July in both the years. Among HAdV positive samples (n = 185), 44.8% showed coinfection with rotavirus. Genotyping based on hypervariable region of hexon and partial shaft region of fiber genes, revealed prevalence of HAdV‐40 over HAdV‐41 genotype during this study period. Nucleotide sequence analysis of HAdV‐40 strains exhibited more than 99% similarity among themselves and 98.5% with the prototype strain Dugan. Sequence analysis of six hypervariable regions (HVRs) of hexon genes from all the HAdV‐41 strains revealed co‐circulation of both genome type cluster 1(GTC1) and GTC2. The presence of both types of GTCs reflects accumulation of amino acid (aa) mutations in HVR of hexon gene. A recombination event was evident in a subset of HAdV‐41 strains where hexon gene belonged to GTC1 whereas, fiber gene clustered with GTC2. Sequence analysis of fiber gene shaft region of HAdV‐41 strains revealed 15 aa deletion from the 15th repeat motif. J. Med. Virol. 89:606–614, 2017. © 2016 Wiley Periodicals, Inc.
Emotion processing in Alzheimer's disease

To date, there have been few studies of emotion processing in those suffering from Alzheimer's disease, yet this may have an important effect on the quality of life of both sufferers and their families. This paper describes an investigation of the relative changes in cognition and in recognition and identification of non-verbal communicative signals of emotion in those suffering from Alzheimer's disease, and seeks to address the implications for clinical practice. Twelve adults with a diagnosis of ‘probable’ Alzheimer's disease and 12 matched older adult healthy comparison participants undertook a series of tasks involving face and prosody discrimination. Facial stimuli were presented on cards, and prosodic stimuli on audiotape. Scores were compared with a measure of general cognitive ability. There was a significant difference between the Alzheimer's disease group and healthy older adult group on emotion and cognition tasks respectively. However, the ability to recognize and identify non-verbal affect cues in emotional facial expression and emotional prosody was preserved relative to general cognitive ability in those suffering from Alzheimer's disease. In addition, there were no differences found in the recognition of different emotions (happiness, sadness, anger, fear or neutral). This relative sparing of non-verbal emotional processing skills has implications for provision of assessment and interventions based on the creation of effective forms of communication that are less reliant on cognitive ability.
Association of left varicocoele with height, body mass index and sperm counts in infertile men

The aim of this study was to evaluate interrelation of left varicocoele with height, body mass index (BMI) and sperm counts. We retrospectively evaluated the data of all patients who consulted for infertility at a tertiary academic referral centre from 2000 to 2010. Patient's height, weight, BMI, semen analysis, presence or absence of varicocoele and varicocoele side and grade were evaluated. In statistical evaluations chi‐square, student's t, Mann–Whitney U, anova and logistic regression analyses were performed. In anova analyses, Bonferroni post hoc test was performed when needed. The data of 1842 among 2780 men, presenting for infertility, were included in the study. There were 587 men (31.9%) with left varicocoele and 1255 (68.1%) men without varicocoele. Two hundred and seventy‐two men (14.8%) had grade I or II, and 315 men (17.1%) had grade III varicocoeles. Mean height was 174.3 ± 6.7 and 172.5 ± 7.0 cm in men with and without varicocoele respectively (p < 0.001). The mean BMI of cases without varicocoeles (25.8 kg/m2) was greater than varicocoele group (24.9 kg/m2) (p < 0.001). Percentage of varicocoele was the highest in moderately oligozoospermic males and significantly higher than the men with normal sperm count. As the height increased, the probability of having varicocoele increased, and the inverse is true for BMI. If varicocoeles are a progressive lesion, perhaps taller men with varicocoeles should be followed more closely to evaluate their fertility and androgenic status.
Task shifting of HIV management from doctors to nurses in Africa: Clinical outcomes and evidence on nurse self-efficacy and job satisfaction

With 24% global disease burden and 3% global health workforce, the World Health Organization (WHO) designates the African region a critical workforce shortage area. Task shifting is a WHO-recommended strategy for countries with severe health worker shortages. It involves redistribution of healthcare tasks to make efficient use of available workers. Severe physician shortages, increasing HIV disease burden, and the need for improved access to antiretroviral treatment (ART) posed serious challenges for Africa. Shifting ART management from physicians to nurses was adopted by many countries to increase access to treatment. Growing evidence from Africa supports this model of care but little is known about its impact on African nurses. A PubMed literature search was conducted for most recent task-shifting studies in Africa between January 2009 and August 2012. Thirty-four studies were identified but 11 met criteria for “task shifting from physicians to nurses in HIV settings. ” The methodologies and findings related to patient outcome, nurses' perceived self-efficacy, and job satisfaction were summarized. Patient outcomes were measured in 10 of the studies and all demonstrated comparable results. Seven of eight studies showed no difference in mortality while five found better retention and lower client loss to follow-up in nurse-managed groups. Four studies showed that nurses built on existing nursing and HIV knowledge; improved HIV and other disease management skills; and had increased comfort levels with using treatment guidelines. Results of job satisfaction from three studies showed that nurses expressed “feelings of emotional rewards, accomplishment, prestige, and improved morale. ” In six studies, nurse-managed care was acceptable to patients in five studies, nurses in two studies, and majority of physicians and program managers in one study. Nurse-managed care had comparable outcomes and retained more patients but only two studies “directly” assessed nurses' perceptions. Research exploring nurses' response, self-efficacy, and job satisfaction are critically to sustainability.
Generation and Application of Type-specific Anti-Heparan Sulfate Antibodies Using Phage Display Technology

Detailed analysis of various heparan sulfate (HS) species is seriously hampered by a lack of appropriate tools, such as antibodies. We adopted phage display technology to generate anti-HS antibodies. A “single pot” semisynthetic human antibody phage display library was subjected to four rounds of selection on HS from bovine kidney using panning methodology. Three different phage clones expressing anti-HS single chain variable fragment antibodies (HS4C3, HS4D10, and HS3G8) were isolated, with an amino acid sequence of the complementarity-determining region 3 of GRRLKD (VH3 gene, DP-38), SLRMNGCGAHQ (VH3 gene,DP-42), and YYHYKVN (VH1 gene,DP-8), respectively. The antibodies react with HS and heparin, but not with DNA or other glycosaminoglycans. K d values for HS are about 0.1 μm. The three antibodies react differently toward various HS preparations and show different staining patterns on rat kidney sections, indicating recognition of different HS molecules. This also holds for two described mouse anti-HS IgMs (JM403 and 10E4; both generated by conventional hybridoma technique) and indicates the presence of at least 5 different HS species in the kidney. O- andN-sulfation are important for binding of HS to HS4C3 and HS3G8. The three single chain antibodies, but not JM403, block a basic fibroblast growth factor binding site of HS. It is concluded that phage display technology presents a powerful technique to generate antibodies specific for HS epitopes. This is the first time this technique has been successfully applied to obtain directly antibodies to (poly)saccharides.
World Health organization (WHO) and the World Heart Federation (WHF) pathobiological determinants of atherosclerosis in youth study (WHO/WHF PBDAY Study) 1986-1996. Histomorphometry and histochemistry of atherosclerotic lesions in coronary arteries and the aorta in a young population.

BACKGROUND AND AIM The present work is a chapter in an investigation directed by the World Health Organization on the Pathobiological Determinants of Atherosclerosis In Youth (WHO-PBDAY). Our aim was to study the development of atherosclerotic lesions in a young population. METHODS AND RESULTS Samples of left anterior descending coronary artery (LDC) and thoracic (TA) and abdominal aorta (AA) from five Collaborating Centres (Budapest/Hungary, Havana/Cuba, Heidelberg/Germany, Mexico City/Mexico, Peradeniya/Sri Lanka) of 214 subjects who died aged 15 and 34 were analysed at the Budapest Reference Centre. Slides stained with haematoxylin-eosin and with stains for extracellular matrix were quantitatively and qualitatively evaluated. Mean intima/media (I/M) ratio and the prevalence of type III-IV lesions (preatheroma; atheroma; calcified and fibrous atheroma) were determined and compared in different risk factor (high blood pressure, smoking) groups. High I/M ratio was found in the LDC and type III-IV lesions were frequently found both in the LDC and in the AA. I/M ratio and the occurrence of type III-IV lesions increased in all arteries by age. Atherosclerotic lesions in men were more severe, particularly in the LDC. Geographic origin had a limited effect on the histologic lesion parameters. Appearance of type III-IV lesions was associated with substantially different extracellular matrix changes. Myoelastic layer formation was found in each artery in both early and type III-IV lesions. Hypertension was associated with higher prevalence of type III-IV lesions in all arteries, in particular, in the TA; smoking showed a significant effect on the AA only. CONCLUSIONS Atherosclerotic lesions were found in many of these young subjects. The effect of hypertension and smoking on their development suggests that control of risk factors, beginning in early adolescence, could help to prevent cardiovascular diseases.