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Background and aim: Bone marrow stem cells (BM-SCs) and their progeny play a central role in tissue repair and regeneration. In patients with chronic liver failure, bone marrow (BM) reserve is severally compromised and they showed marked defects in the resolution of injury and infection, leading to liver failure and the onset of decompensation. Whether BM failure is the cause or consequence of liver failure during cirrhosis is not known. In this study, we aimed to determine the underlying relationship between BM failure and regeneration failure in cirrhosis. Methodology: C57Bl/6(J) mice were used to develop chronic liver injury through intra-peritoneal administration of carbon tetrachloride (CCl4) for 15 weeks (0.1- 0.5 ml/kg). Animals were sacrificed to study the transition of cirrhosis and BM defects. To restore the BM-SC reserve; healthy BM cells were infused via intra- BM infusion and assessed for changes in liver injury, regeneration, and BMSC reserve. Results: Using a CCl4-induced animal - model of cirrhosis, we showed the loss of BM-SCs reserve occurred before regeneration failure and the onset of nonacute decompensation. Intra-BM infusion of healthy BM cells induced the repopulation of native hematopoietic stem cells (HSCs) in cirrhotic BM. Restoring BM-HSCs reserve augments liver macrophage-mediated clearance of infection and inflammation dampens neutrophil-mediated inflammation, accelerates fibrosis regression, enhances hepatocyte proliferation, and delays the onset of non-acute decompensation. Conclusion: These findings suggest that loss of BM-HSCs reserve underlies the compromised innate immune function of the liver, drives regeneration failure, and the onset of non-acute decompensation. We further provide the proof-ofconcept that rejuvenating BM-HSC reserve can serve as a potential therapeutic approach for preventing regeneration failure and transition to decompensated cirrhosis. [ABSTRACT FROM AUTHOR]

Few landscapes on earth remain free of human‐modification, which may influence resource selection in wildlife. To investigate the effects of anthropic pressure on wild boar (Sus scrofa) and explore management implications, we studied how diel resource selection of the species' main life stages changed with spatial variations of human access (e.g., for recreation), temporal changes in hunting pressure, and habitat type. Using 206,461 hourly GPS‐locations of 15 males, 11 females with dependent young, and 17 other females from south‐western Germany, we found anthropic pressure influenced resource selection more than ecological factors. All boars were more likely to select for low human‐access areas than high human‐access areas, regardless of habitat. Hunting pressure was most avoided by females with dependent piglets, followed by males and other females. Since both hunting activity and general human access affected resource selection, they should be considered simultaneously in wildlife management and conservation. We suggest the further establishment of wildlife reserves that are inaccessible to people where boar may remain more localized, thereby reducing the risk of disease transmission, and boar hunting to focus on open lands and refuge boundaries to reduce crop damage. This may also benefit overall human‐wildlife coexistence, animal welfare, and biodiversity conservation in anthropized environments. [ABSTRACT FROM AUTHOR]

Context: To investigate the major impact of roads on wildlife, most studies focus on hot-spots of wildlife-vehicle collisions (WVC) to identify areas in need of mitigation measures. However, on road stretches where the frequency of WVC is low, a question arises: is this because those locations are 'safe’ places for wildlife to cross the road with little risk of collisions; or is it because individuals avoid approaching and crossing the road in these locations? Objectives: In this study, we addressed this gap by evaluating how roe deer crossings are related to WVC risk across the road network. Methods: We used 56 076 WVC locations between 2013 and 2017 to predict the spatiotemporal risk zones in response to environmental, road-related and seasonal predictors using Species-Distribution Modelling (SDM). We compared the predictive WVC risk to the location of 20 744 road crossing by 46 GPS-collared roe deer individuals. Results: We found that the risk of WVC with roe deer tends to be higher on federal roads that are present in a density of approximate 2.2 km/km2 and surrounded by broad-leafed forests and demonstrate that SDMs can be a powerful tool to predict the risk of WVC across the road network. Roe deer crossed roads more frequently in high WVC risk areas. Temporally, the number of WVC changed throughout the year, which can be linked to roe deer movement patterns rather than landscape features. Within this study, we did not identify any road segments that were a complete barrier to roe deer movement. Conclusions: The absence of complete barriers to roe deer movement detected in the present study, might be due to the low spatial variation of the landscape, coupled with the high individual variation in movement behaviour. By applying our approach at greater spatial scales and in other landscape contexts, future studies can continue to explore the potential barrier impacts of roads on landscape connectivity. Exploring the relationship between crossing activity and collision risk can improve one’s ability to correctly identify road stretches that require mitigation measures to improve connectivity versus reduce collisions. [ABSTRACT FROM AUTHOR]

Introduction: With evolving pandemic, a substantial proportion of patients are presenting with liver dysfunction as an extra-pulmonary manifestation of COVID-19 illness. We planned this study to evaluate the incidence of liver dysfunction in COVID-19 pneumonia and find an association between abnormal liver function and the severity of the disease. Method: We retrospectively analysed the hospital records of 344 patients with moderate to severe COVID-19 illness admitted to a Dedicated COVID Hospital in North India. Results: Out of 344 patients included in the study, 59.9% were males. The abnormal liver functions were present in 78.49% of patients at admission. Mean age of the patient with liver dysfunction was 53.41 ± 15.71 years. The incidence of elevated aspartate aminotransferase (AST), alanine aminotransferase (ALT), and hypoalbuminemia was 82.96%, 74.91%, and 69.7%, respectively, in patients with COVID-19 at admission. A positive correlation was found between the levels of AST, ALT and hypoalbuminemia with severity of disease. Mortality was 33% in patients with liver dysfunction in comparison to 18.9% in patients with normal liver functions. Conclusion: More than 75% of the patient had abnormal liver functions at admission, and mortality was also high in this group. Mortality can be effectively reduced if laboratory parameters such as elevated AST and ALT and hypoalbuminemia are closely monitored at admission and during hospital stay in patients with risk factors like male, age <55 years and HTN. [ABSTRACT FROM AUTHOR]

Carrion is a valuable resource in forests, providing sustenance for vertebrate and invertebrate scavenger communities and contributing to ecosystem functions, such as nutrient cycling. Intensive ungulate hunting, and thereby extraction of carcasses, removes large quantities of potential carrion from the system, denying a valuable resource from scavenger fauna. It may be possible to reduce the loss and negative consequences to forest biodiversity by retaining evisceration residues from hunted deer, where full carcasses cannot be retained. However, what roll evisceration residues play as a resource for scavengers in temperate forests is not well understood. In this study, we exposed 47 carrion samples from hunted roe deer, in front of triple sets of camera traps, to examine how hunting remains are removed and fed upon by vertebrate scavengers. Overall, 70% of the samples were completely removed from experimental sites by vertebrates. We detected twelve vertebrate taxa feeding on evisceration residues, including martens (Martes spp.), red kites Milvus milvus and garden dormice Eliomys quercinus. Common buzzards Buteo buteo and Eurasian jays Garrulus glandarius were the most frequent feeders on carrion samples, while red foxes Vulpes vulpes displaced the largest proportion of samples. Finally, we found a range of insectivorous bird and mammal species using hunting remains as a source for invertebrate prey, while not scavenging on the remains directly. We demonstrate that evisceration residues can be a valuable resource for a wide range of taxa and suggest that viscera retention from hunted game may contribute to resource provisioning for scavengers in forest ecosystems. [ABSTRACT FROM AUTHOR]

Selective browsing by deer on young trees may impede the management goal of increasing forest resilience against climate change and other disturbances. Deer population density is often considered the main driver of browsing impacts on young trees, however, a range of other variables such as food availability also affect this relationship. In this study, we use browsing survey data from 135 research plots to explore patterns of roe deer (Capreolus capreolus) browsing pressure on woody plants in mountainous forests in central Europe. We fitted species‐specific generalised linear mixed models for eight woody taxa, assessing the potential effects of understory characteristics, roe deer abundance and lying deadwood on browsing intensity. Our study reveals conspecific and associational effects for woody taxa that are intermediately browsed by roe deer. Selective browsing pressure was mediated by preferences of plants, in that, browsing of strongly preferred woody taxa as for example mountain ash (Sorbus aucuparia) and of least preferred woody taxa, for example Norway spruce (Picea abies) was not affected by the surrounding understory vegetation, while browsing pressure on intermediately browsed species like for example silver fir (Abies alba) was affected by understory characteristics. Contrary to our expectations, roe deer abundance was only positively associated with browsing pressure on silver fir and bilberry (Vaccinium myrtillus), while all other plants were unaffected by deer abundance. Finally, we did not find an influence of lying deadwood volume on the browsing pressure on any woody‐plant species. Overall, our results indicate that patterns in browsing preference and intensity are species‐specific processes and are partly affected by the surrounding understory vegetation. Current management strategies that aim to reduce browsing pressure through culling may be inefficient as they do not address other drivers of browsing pressure. However, managers also need to consider the characteristics of the local understory vegetation in addition to deer abundance and design species‐specific plans to reduce browsing on woody plant taxa. [ABSTRACT FROM AUTHOR]

The pathophysiology behind Coronavirus Disease-2019 (COVID-19) has remained blur even after more than two years of onset of the pandemic. Apart from pulmonary parenchymal involvement, widespread vascular thrombosis affecting both pulmonary and extra-pulmonary systems has also been seen to contribute to COVID-19 associated morbidity. This vascular manifestation often remains undiagnosed due to non specific and varied symptoms that range from asymptomatic detection to life threatening presentations. A series of six COVID-19 positive (three male and three female) cases who presented with thrombosis of pulmonary, coronary and cerebral vessels despite being on thromboprophylaxis are reported herein. The age of patients ranged from 32 to 80 years. Out of six patients, three had comorbidities. The most common complication was Pulmonary Thromboembolism (PTE, n=3) followed by Brain infarct (n=2) and Myocardial Infarction (MI, n=1). Out of three patients with PTE, one patient had concurrent Deep Vein Thrombosis (DVT). All patients were managed as per guidelines issued by the Ministry of Health and Family Welfare for severe COVID-19 disease. Out of six patients, three patients died and three were discharged. The series highlights the need for high index of suspicion on the part of the treating physician that could aid in early detection and successful management of this potentially fatal condition. [ABSTRACT FROM AUTHOR]

A 43-year-old male using valproic acid (VA) for 2 years for seizure disorder presented with right-sided moderate pleural effusion. Pleural fluid analysis revealed exudative effusion with 42% eosinophils. There was no evidence of haemothorax, pneumothorax, malignancy, and parasitic infections. Suspecting a drug-related event, VA was discontinued. The patient showed clinical improvement with resolution of pleural effusion on chest radiograph three weeks later. VA is a popular drug used for variety of disorders like seizures, migraines, and schizophrenia. There is a paucity of literature on VA-induced pleural effusion. Though a rare phenomenon, clinicians should be aware of such a possibility to avoid erroneous diagnosis. [ABSTRACT FROM AUTHOR]

Purpose: The purpose of this paper is to facilitate perishable product supply chain (PPSC) managers and practitioners to assess PPSC failure events. The paper proposed fault tree methodology for assessing failures associated with PPSC for evaluating the performance in terms of effective PPSC management adoption. Design/methodology/approach: Initially, different failure events were identified from literature and semi-structured interviews from experts. Fault tree model was developed from the identified failure events. Probability of failure events was calculated using Poisson distribution based on the annual reports and interviews conducted from experts. Further, qualitative analysis – minimum cut sets (MCSs), structural importance coefficient (SIC) – and quantitative analysis – Birnbaum importance measure (BIM), criticality importance factor (CIF) and diagnosis importance factor (DIF) – were performed for ranking of failure events. In this study, fault tree development and analysis were conducted on apple supply chain to present the authenticity of this method for failure analysis. Findings: The findings indicate that the failure events, given as failure at production and procurement (A2), that is, involvement of middleman (BE3), handling and packaging failure (BE4) and transportation failure (A3), hold the highest-ranking scores in analysis of PPSC using fault tree approach. Originality/value: This research uses the modularization approach for evaluation of failure events of PPSC. This paper explores failures related to PPSC for efficient management initiatives in apple supply chain context. The paper also provides suggestion from managerial perspective with respect to each failure event. [ABSTRACT FROM AUTHOR]

Prey species may display anti‐predatory behavior, i.e., flight, increased vigilance, and decreased feeding, in response to the true presence of a predator or to the implied presence of a predator through, e.g., acoustic cues. In this study, we investigated the anti‐predatory reactions of moose (Alces alces) to acoustic stimuli related to hunting, at saltlick stones, a known attractant. In before‐during‐after‐control‐impact experiments, we compared the behavioral responses of individuals to: (i) two hunting‐related acoustic stimuli—hunting dog barking and human speaking; (ii) nonpredatory acoustic stimuli—bird sounds and; and (iii) no acoustic stimulus (control). We asked: (1) How does the probability of moose leaving the site differ depending on the stimulus they are exposed to?; (2) What affect do the acoustic stimuli have on the amount of time moose spend vigilant, feeding, or away from the site?; and (3) What affect do the stimuli have on the time between events at a site? We found that when exposed to the human stimulus, moose left the sites in 75% of the events, which was significantly more often compared to the dog (39%), bird (24%), or silent (11%) events. If moose did not leave the site, they spent more time vigilant, and less time feeding, particularly when exposed to a dog or human stimulus. Furthermore, moose spent the most time away from the site and took the longest to visit the site again after a human stimulus. Moose were also more likely to leave the site when exposed to the bird stimulus than during silent controls. Those that remained spent more time vigilant, but their behaviors returned to baseline after the bird stimulus ended. These findings suggest that acoustic stimuli can be used to modify the behavior of moose; however, reactions towards presumably threatening and nonthreatening stimuli were not as distinct as we had expected. [ABSTRACT FROM AUTHOR]

Carrion of wild ungulates is an important resource for microbes, invertebrates and vertebrates, and affects local plant communities and soils. Most wild ungulates in central Europe, however, are intensely hunted and removed from the ecosystem, thus not available as carrion. This study explores the use of evisceration residues as a resource by necrophagous insects in a temperate mountainous forest in Germany. We experimentally compared the relative abundance of necrophagous insects between sites of caged roe deer carcasses and evisceration residues of roe deer using pitfall-traps. While evisceration residues were used by necrophagous insects, significantly more individuals were sampled at entire deer carcasses; when corrected for biomass, however, no signifi- cant difference in abundance for Coleoptera groups was found. Overall, evisceration residues were used earlier and for a shorter period than entire deer carcasses. Leaving evisceration residues on site where game animals are obtained might help maintain specialized necrophagous insect communities, although their ecological role cannot completely replace that of whole carcasses of wild ruminants. [ABSTRACT FROM AUTHOR]

Carrion of wild ungulates is an important resource for microbes, invertebrates and vertebrates, and affects local plant communities and soils. Most wild ungulates in central Europe, however, are intensely hunted and removed from the ecosystem, thus not available as carrion. This study explores the use of evisceration residues as a resource by necrophagous insects in a temperate mountainous forest in Germany. We experimentally compared the relative abundance of necrophagous insects between sites of caged roe deer carcasses and evisceration residues of roe deer using pitfall‐traps. While evisceration residues were used by necrophagous insects, significantly more individuals were sampled at entire deer carcasses; when corrected for biomass, however, no significant difference in abundance for Coleoptera groups was found. Overall, evisceration residues were used earlier and for a shorter period than entire deer carcasses. Leaving evisceration residues on site where game animals are obtained might help maintain specialized necrophagous insect communities, although their ecological role cannot completely replace that of whole carcasses of wild ruminants. [ABSTRACT FROM AUTHOR]

Himachal Pradesh is a hilly state situated in the heart of Himalaya in the Northern part of India. The state extends between 30°22'40' - 33°12'20" North latitudes and 75°44' 55"-79°04'20" East longitudes. There are large numbers of fungal species in H.P. most which are pathogenic and caused by harmful impact on the crop and plants. But there are some species of fungi which are caused the significant role in the plant growth and prevent the plant from diseases. The most abundant species of fungi which are agriculturally significant found in the Himachal Pradesh are Candida oleophila, Trichoderma harzianum and arbuscular mycorrhizal fungi (Glomus fasciculatum) ectomycorrhizal fungi. Also, association of fungi with plant helps in defending against plant pathogens that indirectly promotes plant growth. Now day's fungi are used in many regions of the world as a biological pest control. Beneficial fungi play a significant role in numerous physiological processes including minerals and water uptake, stomatal movement, photosynthesis and biosynthesis of compounds and mitigation to environmental stress like heat, salinity, cold and heavy metals. Candida oleophila is a yeast-like fungus which is also obtained from the various fruits skin like papaya, pears, apple etc. Most of the species of Candida are ubiquitous. Trichoderma harzianum species are ubiquitous in nature and found in all climatic zone (including temperate and tropical regions, tundra and Antarctic), nearly all soil types (crop fields, desert and marsh) and unusual niches such as lakes, marine bivalves, air, termites and shell fish. There are several antagonistic mechanism used by Trichoderma, mainly the antibiosis and mycoparasitism where it is used as biocontrol agents directly attack the plant pathogen by secreting lytic enzymes. Glomus fasciculatum found in association with great variety of cultivated plants and plants of natural forest communities. It helps in the increases plant growth and development by improving the rooting of micropropagated plantlets. They contribute to plant nutrition acquisitions by influencing the chemical and microbial ecology of the mycorrhizosphere. [ABSTRACT FROM AUTHOR]

Introduction: Medical education has been adversely affected during COVID-19 pandemic. Imparting medical education through e-platforms exclusively was a novel experience both for students and teachers. Even though online classes have been ongoing since almost a year and half, not much data on perception and experience about e-learning among medical students is available from India. Aim: To evaluate perceptions, experiences and challenges faced by medical students regarding e-learning during lockdown period owing to COVID-19 along with their future preferences. Materials and Methods: The present study was a questionnaire based cross-sectional survey regarding use of e-learning during COVID-19 pandemic among 340 MBBS (Bachelor of Medicine and Bachelor of Surgery) and Bachelor of Science Nursing (BSc-NUR) students. It was conducted in the Department of Pulmonary Medicine at Shri Lal Bahadur Shastri Medical College and Hospital Mandi, Himachal Pradesh, India from May-July 2021. Students perceptions' of e-learning were assessed using the validated Technology Acceptance Model (TAM) model and responses were measured on 5-point Likert scale. Quantitative data was expressed by mean and standard deviation and significant level of differences between means were tested by Student's t-test (unpaired). Proportions were compared by Chisquare test or Fisher's-exact test. Results: Out of 400 students, 340 responded of which 225 were females. Of the total 340 students, 97.9% (n=333) respondents, had an idea of e-learning and more than half (n=188; 55.3%) had used any type of e-learning platform prior to onset of COVID-19. More number of MBBS students had used e-learning than BSc-NUR students (55% v/s 41%; p=0.033). Cell phone was the most common device (n=324; 95.3%) used. The quick sharing of material (n=258; 76%) and flexibility (n=233; 68.5%) were top rated benefits of e-learning. The key disadvantages were suboptimal practical training (n=222; 65.3%) and lack of face-to-face interactions (n=146; 43%). Majority of students voted for traditional learning (n=156; 45.9%) closely followed by blended learning (n=140; 41.2%). Conclusion: The students had an overall positive attitude towards e-learning and wanted to continue e-learning alongside traditional teaching i.e., blended learning. Exploration of merits and barriers to e-learning during pandemic can act as a guide to implement blended learning in medical curriculum for enhanced teaching/learning experience. [ABSTRACT FROM AUTHOR]

Introduction: Chronic Obstructive Pulmonary Disease (COPD) is characterised by limitation of airflow that is not fully reversible. Acute exacerbations lead to worsening of respiratory symptoms which results in increased hospitalisation incurring high socio-economic costs. Timely diagnosis and early treatment of exacerbation can avoid unnecessary hospitalisation and mortality. Biomarkers which may function as diagnostic and prognostication aids are of great help in resource constrained countries like India. Indian literature on the role of biomarkers in such context are scarce. Aim: To evaluate serum levels of C-Reactive Protein (CRP) and Procalcitonin (PCT) in COPD patients admitted in respiratory ward with acute exacerbation and assess their correlation with course of disease. Materials and Methods: The present study was an observational study in which a total of 103 COPD patients, diagnosed as per Global initiative for chronic Obstructive Lung Disease (GOLD) guidelines admitted with acute exacerbation, were included in the study. All patients were subjected to routine investigations at admission. The serum CRP and PCT levels were assessed at the time of admission, discharge and at four weeks after discharge as well. Normality of quantitative data was checked by measures of Kolmogorov Smirnov tests of normality. For normally distributed data means were compared using unpaired t-test. For skewed data or scores Mann-Whitney Test was applied. For categorical variables, numbers and percentages were calculated. The data observed at various points of time was compared using Wilcoxon Signed Rank Test or Paired t-test whichever was applicable depending on its normality. Correlation analysis was performed using Spearman's Rank Test. All calculations were two-sided and were performed using Statistical Package for the Social Sciences (SPSS) trial version 17.0 (SPSS, Chicago, IL). A p-value of <0.05 was considered to indicate statistical significance. Results: Serum levels of CRP and PCT measured were as follows; 10.80±21.1 mg/L, 7.40±8.9 mg/L and 3.50±6.20 mg/L (mean±standard deviation) and 0.08±0.11 mg/L, 0.05±0.70 mg/L, and 0.01±0.04 mg/L (mean±standard deviation) at admission, discharge and follow-up, respectively. CRP and PCT levels were significantly higher at the time of admission than at discharge and follow-up (p-value =0.001, p-value =0.001) which correlated with severity of breathlessness as per Modified Medical Research Council (mMRC) dyspnoea scale. A significant correlation between CRP and PCT values was found at the time of admission (r= 0.423, p-value =0.001) and at discharge (r =0.310, p-value =0.001) but not at follow-up (r=0.049, p-value =0.622). Conclusion: The serum levels of CRP and PCT dropped significantly from admission to discharge and then follow-up after one month. The change in these parameters correlated well with exacerbation and stable phases of COPD. Further research is required to validate their role as biomarkers of acute exacerbation of COPD. [ABSTRACT FROM AUTHOR]

Traffic disturbances (i.e. pollution, light, noise, and vibrations) often extend into the area surrounding a road creating a 'road-effect zone'. Habitat within the road-effect zone is degraded or, in severe cases, completely unsuitable for wildlife, resulting in indirect habitat loss. This can have a disproportionate impact on wildlife in highly modified landscapes, where remaining habitat is scarce or occurs predominantly along roadside reserves. In this study, we investigated the road-effect zone for insectivorous bats in highly cleared agricultural landscapes by quantifying the change in call activity with proximity to three major freeways. The activity of seven out of 10 species of bat significantly decreased with proximity to the freeway. We defined the road-effect zone to be the proximity at which call activity declined by at least 20% relative to the maximum detected activity. The overall road-effect zone for bats in this region was 307 m, varying between 123 and 890 m for individual species. Given that this road-effect zone exceeds the typical width of the roadside verges (<50 m), it is possible that much of the vegetation adjacent to freeways in this and similar landscapes provides low-quality habitat for bats. Without accounting for the road-effect zone, the amount of habitat lost or degraded due to roads is underestimated, potentially resulting in the loss of wildlife, ecosystem services and key ecosystem processes (e.g. predator-prey or plant-pollinator interactions) from the landscape. We suggest all future environmental impact assessments include quantifying the road-effect zone for sensitive wildlife, in order to best plan and mitigate the impact of roads on the environment. Mitigating the effects of new and existing roads on wildlife is essential to ensure enough high-quality habitat persists to maintain wildlife populations. [ABSTRACT FROM AUTHOR]

Gray wolves (Canis lupus) are recolonizing many parts of central Europe and are a key part of international conservation directives. However, roads may hinder the reestablishment of gray wolves throughout their historic range by reducing landscape connectivity and increasing mortality from wildlife‐vehicle collisions. The impact of roads on wolves might be mitigated by the construction of green bridges (i.e., large vegetated overpasses, designed to accommodate the movement of wildlife over transportation corridors). In this study, we investigated the seasonal and diurnal use of a green bridge by wolves and three of their main prey species: red deer (Cervus elaphus), roe deer (Capreolus capreolus), and wild boar (Sus scrofa). We found that all four species used the green bridge. Wolves were most active in winter, whereas prey species were most active in spring and summer. All species were more active at dusk and during the night than at dawn and during the day. We found no evidence that wolf presence influenced bridge‐use by prey species, consistent with other tests of the prey‐trap hypothesis. Our results suggest that green bridges are used by wolves and prey species alike, and may foster connectivity and recolonization for these species in rewilding landscapes. [ABSTRACT FROM AUTHOR]

Sarcoidosis was first identified by English physician, Johnathan Hutchinson in 1877. Distinguishing sarcoidosis from TB is pertinent as corticosteroids, which is the mainstay therapy for sarcoidosis that can flare up TB with catastrophic consequences, including failure of national programmes intended for elimination of TB. [Extracted from the article]

The oldest remedies identified to mankind are herbal medicines. India is recognized worldwide for its Ayurvedic treatment. As only little studies are done on this plant, the purpose of current review is to make accessible up-to-date information on, botany, morphology, ecological biodiversity, medicinal uses, phytochemistry and pharmacological activities on diverse parts of Commiphora wightii (Arn.) Bhandari (C. wightii). This review was assembled using scientific literature from electronic search engine such as Springerlink, BioMed Central, PubMed, Scopus, ScienceDirect, Scielo, Medline and Science domain. Supplementary literatures were obtained from books, book chapters, dissertations, websites and other scientific publications. C. wightii (Syn. Commiphora mukul Hook. ex. Stocks) or Guggulu tree. C. wightii is a shrub or small tree belonging to Burseraceae family. C. wightii contains volatile oil, gum resin, gugulipids, guggulsterones, guggulsterols, mukolol and other steroids. Guggulu is very much used in Ayuvedic system of medicine as astringent, anti-septic, expectorant, aphrodisiac, carminative, antispasmodic, emmenagogue. In Ayurveda, it is the best among herbs that are used for Medoroga and Vata disorders. It is widely used for obesity and it is also known as fat burning agent all over the world. It helps to lower cholesterol and triglycerides level. It is very effective in rheumatoid arthritis, gout and sciatica. It is also one of the most important Rasayana of Ayurveda. In addition it treats sluggish liver, stimulates libido, nervous diseases, bronchial congestion, cardiac and circulatory problems, weak digestion, wounds, abscess, foetid ear, fractures, gynaecological problems and various skin diseases. C. wightii is a very important and trustworthy herb in Ayurvedic medicine. This alternative system of medicine is gaining increasing fame universal. There is a required to isolate active constituents, their biological test, molecular mechanisms, experimental defense and legalization of therapeutic uses of C. wightii. The collected information will be obliging to locate up study protocol for current drugs and Ayurvedic formulation extension in remedial and luxury a variety of ailments. Clinical trials for the reported preclinical studies should be executed immediately to further validate the claims on humans. [ABSTRACT FROM AUTHOR]

Commiphora wightii is an important plant species of immense medicinal value and pharmaceutically used for the treatment of various diseases. The present study was designed to develop an efficient protocol for micropropagation of Commiphora wightii from apical and nodal meristems and to study the influence of additives on the enhancement of bud breaking, number of shoot per explant and shoot length. MS (Murashige and Skoog, 1962) basal media supplemented with various concentrations of 6-Benzyl amino purine (BAP: 0.5-5.0 mg/l) alone or in combinations with kinetin (KN: 0.5-1.0 mg/l) and naphthalene acetic acid (NAA: 0.5-1.0 mg/l) and additives like ascorbic acid (AA), citric acid (CA), adenine sulphate (AS) and activated charcoal (AC). The highest shoot initiation was reported in T13 (MS + 4.0BAP + 1.0 NAA mg/l + Additives) i.e. 0.80 ± 0.07 with highest number (1.57 ± 0.15) of shoots per explants. Treatment T12 (MS + 3.0BAP + 1.0 NAA+1.0 KN mg/l + Additives) highest shoot length (1.13) was recorded followed by T13 (MS + 4.0BAP + 1.0 NAA mg/l Additives) and T14 (MS + 5.0BAP + 1.0 KN) having mean value 1.07 and 0.90 respectively. MS basal medium (control) devoid of growth regulators did not support the shoot induction. The shoot induction protocol developed in current study provides a basis for germplasm conservation and for further investigation of medicinally active constituents of the elite medicinal plant. [ABSTRACT FROM AUTHOR]

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Roads and traffic may be contributing to global declines of insect populations. The ecological effects of roads often extend far into the surrounding habitat, over a distance known as the road‐effect zone. The quality of habitat in the road‐effect zone is generally degraded (e.g., due to edge effects, noise, light, and chemical pollution) and can be reflected in species presence, abundance, or demographic parameters. Road‐effect zones have been quantified for some vertebrate species but are yet to be quantified for insects. Investigating the road‐effect zone for insects will provide a better understanding of how roads impact ecosystems, which is particularly important given the role insects play as pollinators, predators, and prey for other species. We quantified the road‐effect zone for nocturnal flying insects along three major freeways in agricultural landscapes in southeast Australia. We collected insects using light traps at six points along 2‐km transects perpendicular to each highway (n = 17). We sorted the samples into order, and dried and weighed each order to obtain a measure of dry biomass. Using regression models within a Bayesian framework of inference, we estimated the change in biomass of each order with distance from the road, while accounting for environmental variables such as temperature, moon phase, and vegetation structure. The biomass of nine of the ten orders sampled did not change with distance from the freeway. Orthoptera (i.e., grasshoppers and crickets) was the only order whose biomass increased with distance from the freeway. From our findings, we suggest that the impacts of roads on insects are unlikely extending into the surrounding landscape over a distance of 2 km. Therefore, if there are impacts of roads on insects, these are more likely to be concentrated at the road itself, or on finer taxonomic scales such as family or genus level. The impacts of roads often extend into the habitat surrounding the road, reducing the occurrence of species in this area. In this study, we aimed to quantify a change in insect order biomass with distance from three major freeways in Victoria Australia. Of the ten orders sampled, Orthoptera was only order whose biomass changed with distance from highway—their biomass increased with distance from the highway. [ABSTRACT FROM AUTHOR]

We consider social networks in which information propagates directionally across layers of rational agents. Each agent makes a locally optimal estimate of the state of the world, and communicates this estimate to agents downstream. When agents receive some information from a common source their estimates are correlated. We show that the resulting redundancy can lead to the loss of information about the state of the world across layers of the network, even when all agents have full knowledge of the network's structure. A simple algebraic condition identifies networks in which information loss occurs, and we show that all such networks must contain a particular network motif. We also study random networks asymptotically as the number of agents increases, and find a sharp transition in the probability of information loss at the point at which the number of agents in one layer exceeds the number in the previous layer. [ABSTRACT FROM AUTHOR]

Introduction: Non-adherence to inhalation therapy is a vital but controllable factor in asthma management that affects disease control. Despite its known importance, there is scarcity of data on adherence to Inhaled Corticosteroids (ICS) among Indian asthma patients. Aim: To evaluate the prevalence of factors predicting medication (ICS) adherence in bronchial asthma using an objective adherence measure. Materials and Methods: Stable bronchial asthma patients on ICS with or without inhaled bronchodilators were enrolled and their relevant demographic and clinical information was recorded. Adherence to ICS was calculated by using an objective method (dose counters/pill counting) as well as through self-reporting adherence. Certain pre-defined patients, disease and therapy related factors were evaluated for their association with medication adherence using each adherence method separately. results: One hundred and three patients were enrolled in the study. Mean age of patients was 41.9+16 years. Females out numbered males in the ratio of 3:2. Medication adherence was seen in a total of 78 (75.7%) and 56 (72.7%) patients by selfreported adherence and objective measurement respectively. On applying multivariate logistic regression analysis, being literate, poor forced expiratory volume in one second (FEV1), and asthma knowledge were found to be independent determinants of adherence to ICS using both adherence methods. Use of Dry Powder Inhalers (DPI) was measured using subjective assessment and was found to be a significant factor. conclusion: Knowledge about medication adherence and literacy are two important patient related modifiable factors predicting adherence to ICS in Indian patients with asthma. Objective monitoring of medication adherence seems to be a better tool than self reported adherence for the evaluation of adherence to ICS in asthma. [ABSTRACT FROM AUTHOR]

Context: Irreversible airway obstruction is important sequelae of pulmonary tuberculosis (TB) that might contribute to a significant proportion of chronic obstructive pulmonary disease (COPD). India has the highest TB burden in the world. However, there are limited data on the prevalence and presentation of TB-associated COPD from this region. Aims: This study aims to evaluate the prevalence of TB-associated COPD among COPD patients presenting to a tertiary care hospital. Settings and Design: It was a case-control study conducted in a tertiary care hospital. Subjects and Methods: Stable COPD patients presenting to chest OPD and an equal number of healthy controls were enrolled. COPD patients were subjected to detailed clinical evaluation and lung function test. History of pulmonary TB was evaluated from both groups through self-reporting and/or checking previous records. TB-associated COPD patients were identified and their prevalence and distinguishing features evaluated. Results: Of 74 COPD patients, 24 (32.4%) had previous history of pulmonary TB. The odds of having a previous TB in COPD patients was 3.96 (95% confidence interval: 1.64-9.55; P = 0.002) as compared to controls. Patients with TB-associated COPD were younger (P = 0.02), had lesser pack-years of smoking (P = 0.027) but had more number of hospitalizations (P = 0.01). The airflow limitation was similar in both groups. Conclusions: TB-associated COPD constitutes a significant proportion of COPD patients. It is a distinct clinical entity with preponderance in young. It may be associated with frequent hospitalizations as compared to other COPD patients. [ABSTRACT FROM AUTHOR]

In laboratory visual search experiments, distractors are often statistically independent of each other. However, stimuli in more naturalistic settings are often correlated and rarely independent. Here, we examine whether human observers take stimulus correlations into account in orientation target detection. We find that they do, although probably not optimally. In particular, it seems that low distractor correlations are overestimated. Our results might contribute to bridging the gap between artificial and natural visual search tasks. [ABSTRACT FROM AUTHOR]

Humans and other animals base their decisions on noisy sensory input. Much work has been devoted to understanding the computations that underlie such decisions. The problem has been studied in a variety of tasks and with stimuli of differing complexity. However, how the statistical structure of stimuli, along with perceptual measurement noise, affects perceptual judgments is not well understood. Here we examine howcorrelations between the components of a stimulus--stimulus correlations--together with correlations in sensory noise, affect decision making. As an example, we consider the task of detecting the presence of a single or multiple targets among distractors. We assume that both the distractors and the observer's measurements of the stimuli are correlated. The computations of an optimal observer in this task are nontrivial yet can be analyzed and understood intuitively. We find that when distractors are strongly correlated, measurement correlations can have a strong impact on performance. When distractor correlations are weak, measurement correlations have little impact unless the number of stimuli is large. Correlations in neural responses to structured stimuli can therefore have a strong impact on perceptual judgments. [ABSTRACT FROM AUTHOR]