Miracle-dz/UniFAR-FTUs huggingface dataset:
Cerebral Revascularization Using Radial Artery Grafts for the Treatment of Complex Intracranial Aneurysms: Techniques and Outcomes for 17 Patients

OBJECTIVEThe goal of this report is to illustrate the use of radial artery grafts as bypass conduits in the management of complex intracranial aneurysms and to describe a new “pressure distension technique” to eliminate postoperative vasospasm, which was a common problem early in our experience. METHODSThis study included a series of 17 patients who were surgically treated between 1994 and January 2001 for complex intracranial aneurysms. Five patients were surgically treated without the pressure distension technique; for 12 patients, the technique was used to reduce postoperative vasospasm. Fourteen of the patients had anterior circulation aneurysms, and three had posterior circulation aneurysms. Five of the patients had undergone previous attempts at direct clipping or excision and reconstruction of the aneurysm in question, and embolization had been performed for one patient with a carotid-cavernous fistula. Thirteen patients underwent permanent revascularization combined with proximal occlusion, trapping, or clipping, and four patients underwent temporary revascularization for cerebral protection during anticipated prolonged occlusion of the parent vessel during aneurysm dissection. Surgical techniques are described, with particular reference to vessel collection and bypass techniques. RESULTSThe outcomes for this group of patients, considering the complexity of the aneurysms and their “inoperability,” with respect to direct clipping, were satisfactory. The aneurysms were completely obliterated for all patients, and the grafts were patent for all except one patient on postoperative angiograms. There were two deaths, one attributable to systemic sepsis and the other attributable to cardiac arrest during a transbronchial biopsy. The postoperative Glasgow Outcome Scale scores were either better or the same for all other patients, compared with their preoperative scores. Three of the five patients treated before the institution of the pressure distension technique experienced vasospasm of the graft, with two of those patients requiring angioplasty. For one of those patients, angioplasty led to rupture of the graft. Vasospasm was not observed for any of the 12 patients for whom the pressure distension technique was used. We observed no morbidity related to radial artery collection. CONCLUSIONRevascularization techniques are occasionally necessary for the surgical treatment of complicated intracranial aneurysms. The merits of the use of the radial artery as a bypass conduit are discussed. Radial artery grafts should be considered as alternatives to saphenous vein and superficial temporal artery grafts. The problem of vasospasm of the artery has been solved with the pressure distention technique.
Captured metagenomics: large-scale targeting of genes based on ‘sequence capture’ reveals functional diversity in soils

Microbial enzyme diversity is a key to understand many ecosystem processes. Whole metagenome sequencing (WMG) obtains information on functional genes, but it is costly and inefficient due to large amount of sequencing that is required. In this study, we have applied a captured metagenomics technique for functional genes in soil microorganisms, as an alternative to WMG. Large-scale targeting of functional genes, coding for enzymes related to organic matter degradation, was applied to two agricultural soil communities through captured metagenomics. Captured metagenomics uses custom-designed, hybridization-based oligonucleotide probes that enrich functional genes of interest in metagenomic libraries where only probe-bound DNA fragments are sequenced. The captured metagenomes were highly enriched with targeted genes while maintaining their target diversity and their taxonomic distribution correlated well with the traditional ribosomal sequencing. The captured metagenomes were highly enriched with genes related to organic matter degradation; at least five times more than similar, publicly available soil WMG projects. This target enrichment technique also preserves the functional representation of the soils, thereby facilitating comparative metagenomics projects. Here, we present the first study that applies the captured metagenomics approach in large scale, and this novel method allows deep investigations of central ecosystem processes by studying functional gene abundances.
A tolerogenic mucosal immune response leads to persistent Campylobacter jejuni colonization in the chicken gut

Campylobacter enteritis is the most reported zoonotic disease in many developed countries where it imposes a serious health burden. Campylobacter transmission to humans occurs primarily through the chicken vector. Chicks are regarded as a natural host for Campylobacter species and are colonized with C. jejuni in particular. But despite carrying a very high bacterial load in their gastrointestinal tract, these birds, in contrast to humans, do not develop pathological signs. It seems that in chickens C. jejuni principally harbors in the cecal mucosal crypts, where an inefficient inflammatory response fails to clear the bacterium from the gut. Recent intensive research resulted in an increased insight into the cross talk between C. jejuni and its avian host. This review discusses the chicken intestinal mucosal immune response upon C. jejuni entrance, leading to tolerance and persistent cecal colonization. It might in addition provide a solid base for further research regarding this topic aiming to fully understand the host–bacterium dynamics of C. jejuni in chicks and to develop effective control measures to clear this zoonotic pathogen from poultry lines.
First Trimester Sex Hormone-Binding Globulin and Subsequent Development of Preeclampsia or Other Adverse Pregnancy Outcomes

Objective. To investigate whether first trimester maternal serum sex hormone-binding globulin (SHBG) concentrations are altered in women who subsequently develop preeclampsia or other pregnancy complications. Population. Women undergoing first trimester combined ultrasound and biochemical screening for chromosomal anomalies. We searched the database and identified 32 pregnancies resulting in miscarriage, 64 pregnancies with preexisting or gestational diabetes mellitus, 107 with fetal growth restriction, 103 with preeclampsia, 64 with pregnancy-induced hypertension, and 26 with spontaneous preterm delivery. We also selected 400 controls from among the population of pregnancies that had a delivery of a normal baby with no pregnancy complications. Methods. Maternal serum SHBG concentrations were measured retrospectively using a competitive chemiluminescent immunoassay. The levels between those with normal outcome and those resulting in adverse outcome were compared. Results. The median maternal serum SHBG concentration was not significantly different from controls, in those that subsequently developed preeclampsia (median MoM 1.05), nonproteinuric hypertension (median MoM 0.94) or preterm delivery (median MoM 1.15). The levels were significantly lower in those with diabetes (median MoM, 0.81 p = 0.0005) and those pregnancies resulting in miscarriage (median MoM 0.80, p = 0.008). Conclusion. First trimester maternal serum SHBG concentrations are no different from controls in women who subsequently develop preeclampsia, pregnancy-induced hypertension, fetal growth restriction, or preterm delivery. Levels are reduced in those who subsequently miscarry or in those presenting with diabetes.
The rod pathway of the macaque monkey retina: Identification of AII‐amacrine cells with antibodies against calretinin

AII‐amacrine cells were characterized from Golgi‐stained sections and wholemounts of the macaque monkey retina. Similar to other mammalian retinae, they are narrow‐field, bistratified amacrine cells with lobular appendages in the outer half of the inner plexiform layer (IPL) and a bushy, smoother dendritic tree in the inner half. AII cells of the monkey retina were stained immunocytochemically with antibodies against the calcium‐binding protein Calretinin. Their retinal mosaic was elaborated, and their density distribution across the retina was measured. Convergence within the rod pathway was calculated. Electron microscopy of Calretinin‐immunolabelled sections was used to study the synaptic connections of the AII cells. They receive a major input from rod bipolar cells, and their output is largely onto cone bipolar cells. Thus, the rod pathway of the primate retina follows the general mammalian scheme as it is known from the cat, the rabbit, and the rat retina. The spatial sampling properties of macaque AII‐amacrine cells are discussed and related to human scotopic visual acuity. © 1995 Wiley‐Liss, Inc.
Ezetimibe Reduces Low-Density Lipoprotein Cholesterol (LDL-C) in Renal Transplant Patients Resistant to HMG-CoA Reductase Inhibitors

Hyperlipidemia is common after renal transplantation. On the basis of current lipid guidelines, the majority of renal transplant recipients should have plasma low-density lipoprotein cholesterol (LDL-C) levels <100 mg/dL. Even with statin (HMG-CoA [3-hydroxy-3-methylglutaryl CoA] reductase inhibitor) therapy, a significant number of renal transplant recipients have LDL-C levels >100 mg/dL. We report that ezetimibe, a novel inhibitor of intestinal cholesterol absorption, was well tolerated and effectively reduced the LDL-C level to <100 mg/dL in our cohort of renal transplant recipients with persistently elevated LDL-C levels during treatment with maximally tolerated statin medications.
Prevalence of age‐related macular degeneration

&NA; Early and late age‐related macular degeneration (AMD) have a high prevalence in elderly patients but may be differentiated by medical or environmental factors, eg, hypertension, geographic area, or antioxidant agents. Because nuclear sclerotic cataract is associated with AMD both aging changes may share a common pathogenesis. The genetic predisposition for AMD is indicated by the identical appearance in monozygotic twins, but genetics may be also important for the explanation of the low incidence of late AMD in black individuals. Specific ocular characteristics like light or depigmented iris color, prolonged dark adaptation, and decreased foveal flicker sensitivity are also risk factors for AMD. Early AMD characteristics with high risk for late AMD are confluent drusen, focal hyperpigmentation, or atrophy and slow choroidal fluorescein filling. Therefore specific genetic, environmental, medical, and ocular characteristics determine the individual appearence and progress of AMD. The knowledge of these factors may result in new prophylactic and specific treatments for AMD.
The relationship between body composition and knee cartilage volume in healthy, middle-aged subjects.

OBJECTIVE Although obesity is widely accepted as a risk factor for knee osteoarthritis, it is not clear whether individual components of body composition, such as the mass and distribution of muscle and fat, are associated with development of the disease. This study examined the effect of measures of body composition on the longitudinal change in tibial cartilage volume. METHODS Body composition, assessed via dual x-ray absorptiometry, and tibial cartilage volume, assessed via magnetic resonance imaging, were measured in 86 healthy men and women who were mid-life in age. Change in tibial cartilage volume was assessed by imaging each knee 2 years after the baseline measurement and determining the difference from baseline in tibial cartilage volume. Correlations were determined between the muscle and fat mass of the arm, leg, and total body and the volume of the lateral- and medial-tibial cartilage, as well as the change in tibial cartilage volume over 2 years, after adjusting for confounders. RESULTS There was a significant association between muscle mass and the medial-tibial cartilage volume, independent of age, sex, body mass index, tibial bone area, and level of physical activity. Although there was a positive association between muscle mass and the lateral-tibial cartilage volume, this did not persist after adjustment for confounders. Loss of muscle mass was associated with an increased loss of medial- and lateral-tibial cartilage over 2 years, after adjusting for confounders. No relationship was apparent between fat mass and either medial- or lateral-tibial cartilage volume, or between fat mass and change in either medial- or lateral-tibial cartilage volume over 2 years, after adjusting for confounders. CONCLUSION Muscle mass is an independent predictor of medial-tibial cartilage volume in healthy people in mid-life and is associated with a reduction in the rate of loss of tibial cartilage. This suggests that increased muscle mass may be protective against the onset of osteoarthritis.
Lung aeration during sleep.

BACKGROUND During sleep, ventilation and functional residual capacity (FRC) decrease slightly. This study addresses regional lung aeration during wakefulness and sleep. METHODS Ten healthy subjects underwent spirometry awake and with polysomnography, including pulse oximetry, and also CT when awake and during sleep. Lung aeration in different lung regions was analyzed. Another three subjects were studied awake to develop a protocol for dynamic CT scanning during breathing. RESULTS Aeration in the dorsal, dependent lung region decreased from a mean of 1.14 +/- 0.34 mL (+/- SD) of gas per gram of lung tissue during wakefulness to 1.04 +/- 0.29 mL/g during non-rapid eye movement (NREM) sleep (- 9%) [p = 0.034]. In contrast, aeration increased in the most ventral, nondependent lung region, from 3.52 +/- 0.77 to 3.73 +/- 0.83 mL/g (+ 6%) [p = 0.007]. In one subject studied during rapid eye movement (REM) sleep, aeration decreased from 0.84 to 0.65 mL/g (- 23%). The fall in dorsal lung aeration during sleep correlated to awake FRC (R(2) = 0.60; p = 0.008). Airway closure, measured awake, occurred near and sometimes above the FRC level. Ventilation tended to be larger in dependent, dorsal lung regions, both awake and during sleep (upper region vs lower region, 3.8% vs 4.9% awake, p = 0.16, and 4.5% vs 5.5% asleep, p = 0.09, respectively). CONCLUSIONS Aeration is reduced in dependent lung regions and increased in ventral regions during NREM and REM sleep. Ventilation was more uniformly distributed between upper and lower lung regions than has previously been reported in awake, upright subjects. Reduced respiratory muscle tone and airway closure are likely causative factors.
Pica Practices among Pregnant Women Are Associated with Lower Hemoglobin Levels and Pregnancy Outcome

Pica is an eating disorder in which non-nutritional objects are frequently eaten, and may have serious side effects for both the mother and neonate. The aim of this study was to determine the pica and its association with biochemical profiles of pregnant women and its relation to pregnancy outcome. A prospective cohort study was conducted in five health care centers in Zahedan City, Iran, in 2011-2012. Samples of pregnant women (n = 200) in the age groups 18 - 40 years were selected for this study and interviewed using a questionnaire. Maternal biochemical profiles (hemoglobin and ferritin) during pregnancy, mean gestational age and pregnancy outcome namely height, weight, and head circumferences of neonates were compared to pregnant women who reported pica (pica group) and women who did not (without pica group). The results showed pica prevalence categorized by substance as follows: clay (23.3%), ice (53.7%), ice and freezer frost (11.5%) and other substances (11.5%). Women in pica group had lower hemoglobin levels during the three trimesters of pregnancy than without pica group. Head circumferences of neonates in pica groups were significantly lower than those of without pica groups (31.0 ± 0.6 vs. 34.0 ± 0.2 respectively). There were no differences in mean birth weight, length, gestational age of infants born to pregnant women from the pica group and without pica group. The findings suggest that the pica practices during pregnancy are associated with lower maternal hemoglobin during the pregnancy periods, and also significantly lower head circumferences of neonates. Dietitians should ask pregnant women with anemia about pica and should counsel pregnant women who report pica.
Time burden of caring and depression among parents of individuals with cerebral palsy

Abstract Purpose: The presence of an individual with disability in a family affects the whole family. Families of individuals with cerebral palsy (CP) experience increased psychological anxiety and financial problems; specifically, parents tend to feel time pressure and struggle to maintain their social and cultural activities. Methods: t-Tests and ANOVA with post hoc Tukey tests were used to compare caregiving time, time pressure, and depression between parents. Multivariate logistic regression analysis was used to examine the effect of caregiving time and time pressure on depression in parents. Results: Regarding depression, 58 (38.2%) respondents scored ≥16 on the Center for Epidemiological Studies – Depression scale. Respondents supporting a preschool child spent more time than those supporting adults did; those supporting adults reported less time pressure than those supporting individuals of other ages. Caregiving time’s effect on depression was not supported, whereas increased time pressure raised the risk of depression. Conclusions: The frequency of depression among parents supporting individuals with CP exceeded preceding findings. Time pressure due to support appears to directly predict depression. Total time spent caring appears unrelated to depression. Implications for Rehabilitation It is necessary to prepare various community and family support systems in order to relieve parental caregivers’ burden and exhaustion. Interventions should focus on parents with higher time pressure than parents with high caregiving time. Physical and psychological difficulties experienced by parents supporting a child with a disability vary with the child’s life stage, meaning that families’ care burden partly depends on the age of the individual with disabilities.
Mononuclear cell collection for extracorporeal photochemotherapy: a study comparing an automatic and a semiautomatic apheresis device

Extracorporeal photochemotherapy (ECP) is an effective cell therapy employed in several diseases, including graft‐versus‐host disease (GVHD) and organ rejection after transplantation. When ECP is performed using the off‐line technique, mononuclear cell (MNC) collection by leukapheresis is necessary for further manipulation. Semiautomated apheresis systems require experienced personnel to obtain a good MNC collection; an automated device, able to efficiently collect MNCs with high purity, is desirable. We compared the semiautomated COBE Spectra MNC and the new automated Spectra Optia v.5. 0 MNC (Terumo BCT) devices in terms of efficacy and safety.
STUDY OF NUTRITIONAL QUALITY, PHYTOCHEMICAL CONSTITUENTS AND ANTIOXIDANT ACTIVITIES BY DIFFERENT SOLVENTS OF NETTLE (Urtica urens) FROM MADIKERI-KARNATAKA STATE

Nowadays there is a resurgence of interest in wild plants for their possible medicinal value in diets, since some epidemiological studies have demonstrated their effectiveness against important diseases. The aim of this study was to determine the nutritional and medicinal potential of leaves of Urtica urens. To asses this we analysed the phytochemical and antioxidant activities of leaves in acetone, ethanol, methanol, water and ethyl acetate solvents used for extraction, using standard analytical methods. The proximate analysis showed that the leaves contained appreciable percentage of nutrition and was good in ash and protein content. The extracts contain range 6.76±0.02-21.46±0.04 mg/g levels of polyphenols by showing DPPH and ABTS radical scavenging activity by the solvents. Among them methanol showed 78% and 97% activity at 0.5mg/ml concentration respectively. FRAP activity in acetone was found to be higher than standard BHT compared to other solvents. Macro and microelements showed higher value in decreasing order: iron>manganese>zinc> copper>calcium>potassium> magnesium> phosphorus>sodium. When plant was compared with recommended dietary allowance (RDA) values, the results revealed that the leaves contain an appreciable amount of nutrients, minerals, and phytochemicals. Obtained results provide support for the use of
Assessment of personality and demographic aspects of cohabitation and marital success.

The outcomes of 68 marriages of four-year duration were compared on the basis of whether the partners had or had not cohabited premaritally. Background characteristics and personality data were assessed on those couples when there were newly married, and they were followed-up four years later to determine their current marital status, level of satisfaction, difficulty with various problem areas and the number of children born to them. No reliable differences on marital satisfaction or divorce rates between premarital cohabitors and noncohabitors were found. Cohabitors who divorced did so while reporting less marital distress than noncohabitors who divorced. Premarital cohabitors had significantly fewer children than noncohabitors. Degree of difficulty experienced on various problem areas differed between the groups. Certain personality and background variables predicted marital success differently for the two groups. Using the same selected set of six predictor variables, multiple regression equations were generated for cohabitors and noncohabitors. The cohabitors equation (R2 = .56) predicted marital success significantly more effectively than the noncohabitors equation (R2 = .28), When comparing the tri-weight vectors for these two equations, none of the predictor variables had the same influence in both groups. Theoretical implications of the findings were discussed.
Acoustic systems in biology

Introduction Simple vibrators Vibrations of strings and bars Sensory hairs and otoliths Vibration of membranes, plates, and shells Acoustic waves Acoustic sources and radiation Low-frequency network models Low-frequency auditory models Pipes and horns High-frequency auditory models The inner ear Mechanically excited sound generators Pneumatically excited sound generators Signals, noise, and information Appendices Index.
The origin of workplace bullying: experiences from the perspective of bully victims in the public service sector.

BACKGROUND Workplace bullying has attracted increased attention during the last decade due to its severe consequences on health. However, the origin of bullying has, so far, been insufficiently described. AIM This study investigates the manner in which bullying is initiated at workplaces in the public service sector. METHOD Twenty-two bully victims were interviewed in-depth and data were analysed according to grounded theory methodology. RESULTS The findings of this study demonstrated that bullying was preceded by a long-standing struggle for power. This power struggle emanated from conflicts of values caused by organizational conditions, leadership styles and the involved parties' work expectations. In particular, individuals who perceived themselves as strong and competent or as vulnerable and sensitive persons were targeted in these types of power struggles. CONCLUSIONS In these cases, if values conflicts were solved, the power struggle ebbed. When values conflicts remained unsolved, the gap widened between the targeted individual and that person's opponents. Thereby, the conflict escalated and grew into one characterized by systematic and persistent bullying.