87 research outputs found
The plants, rituals and spells that 'cured' helminthiasis in Sicily
<p>Abstract</p> <p>Background</p> <p>The author reports on the plants, rituals and spells used against worms and the so-called <it>scantu </it>(fright) in some areas of Sicily. The work is based on ethnobotanical research carried out, prevalently, between 2002-2006, in some areas of Eastern, South-Eastern, North-Central and South-Central Sicily.</p> <p>Methods</p> <p>This research is based on dialogue. Senior 'healers' were contacted; furthermore, doctors, teachers, farmers and in general 'experts' with herbs and 'magic' rituals. Information was collected about the way the plants of folk medicine are prepared. The interviewees were also invited to recite prayers and spells against helminthiasis.</p> <p>Results</p> <p>The author has highlighted the importance of how, in some parts of Sicily, some ailments like helminthiasis and other correlated pathologies like <it>scantu </it>are 'treated' and, especially within the rural social classes, by folk medicine remedies, herbal practises, particular prayers, rituals and spells.</p> <p>Conclusion</p> <p>As regards health/illness, it should be noted that in the last ten years conventional medicine has provided very satisfactory results even resolving potentially mortal pathologies. However, in certain social classes, there is no real collaboration between conventional and folk medicine; so for some senior citizens, the 'healer' with his rituals and empirical and magical herbs is still the person to turn to for the 'cure' of particular ailments. Interest in these practises from ancestral heritage in an advanced country like Italy, is only relevant if the aim is to recoup a cultural identity which is already in decline.</p> <p>It is significant to report a piece: on 14 October 2007 the news on a well-known national Italian TV channel reported an interview with a 94 year-old man from Arbatax (Sardinia) referred to as a 'healer' because both his townspeople and others from all over the world go to him for his cures. He is not paid except in kind and has been known to cure St. Anthony's fire, burns, scalding and marine fungal infections, by smearing his saliva over the infected part and reciting 'special words'.</p
Evolution of long-term vaccine-induced and hybrid immunity in healthcare workers after different COVID-19 vaccine regimens
BACKGROUND: Both infection and vaccination, alone or in combination, generate antibody and T cell responses against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, the maintenance of such responses-and hence protection from disease-requires careful characterization. In a large prospective study of UK healthcare workers (HCWs) (Protective Immunity from T Cells in Healthcare Workers [PITCH], within the larger SARS-CoV-2 Immunity and Reinfection Evaluation [SIREN] study), we previously observed that prior infection strongly affected subsequent cellular and humoral immunity induced after long and short dosing intervals of BNT162b2 (Pfizer/BioNTech) vaccination. METHODS: Here, we report longer follow-up of 684 HCWs in this cohort over 6-9 months following two doses of BNT162b2 or AZD1222 (Oxford/AstraZeneca) vaccination and up to 6 months following a subsequent mRNA booster vaccination. FINDINGS: We make three observations: first, the dynamics of humoral and cellular responses differ; binding and neutralizing antibodies declined, whereas T and memory B cell responses were maintained after the second vaccine dose. Second, vaccine boosting restored immunoglobulin (Ig) G levels; broadened neutralizing activity against variants of concern, including Omicron BA.1, BA.2, and BA.5; and boosted T cell responses above the 6-month level after dose 2. Third, prior infection maintained its impact driving larger and broader T cell responses compared with never-infected people, a feature maintained until 6 months after the third dose. CONCLUSIONS: Broadly cross-reactive T cell responses are well maintained over time-especially in those with combined vaccine and infection-induced immunity ("hybrid" immunity)-and may contribute to continued protection against severe disease
SARS-CoV-2-specific immune responses and clinical outcomes after COVID-19 vaccination in patients with immune-suppressive disease
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) immune responses and infection outcomes were evaluated in 2,686 patients with varying immune-suppressive disease states after administration of two Coronavirus Disease 2019 (COVID-19) vaccines. Overall, 255 of 2,204 (12%) patients failed to develop anti-spike antibodies, with an additional 600 of 2,204 (27%) patients generating low levels (<380 AU ml−1). Vaccine failure rates were highest in ANCA-associated vasculitis on rituximab (21/29, 72%), hemodialysis on immunosuppressive therapy (6/30, 20%) and solid organ transplant recipients (20/81, 25% and 141/458, 31%). SARS-CoV-2-specific T cell responses were detected in 513 of 580 (88%) patients, with lower T cell magnitude or proportion in hemodialysis, allogeneic hematopoietic stem cell transplantation and liver transplant recipients (versus healthy controls). Humoral responses against Omicron (BA.1) were reduced, although cross-reactive T cell responses were sustained in all participants for whom these data were available. BNT162b2 was associated with higher antibody but lower cellular responses compared to ChAdOx1 nCoV-19 vaccination. We report 474 SARS-CoV-2 infection episodes, including 48 individuals with hospitalization or death from COVID-19. Decreased magnitude of both the serological and the T cell response was associated with severe COVID-19. Overall, we identified clinical phenotypes that may benefit from targeted COVID-19 therapeutic strategies
A Study on Technological and Operational Aspects
The fishing industry the world over is passing through a critical situation.The landings of marine fishes seemed to have reached saturation in major fishing areas of the world.As a general rule fisheries employing fishing gear and techniques used by small scale and artisanal fishermen either from shore or from onboard small fishing craft come under small-scale fisheries.This study on gill nets of Kerala, the fishing method depended upon by maximum fishermen of the state focuses on the importance of this selective and low energy fishing method in the marine fishing sector of the state.The study opens with the conceptual framework by briefly reviewing the crisis in the marine fisheries sector. Maximum fishermen depend upon gill net, which is, an important selective and low energy fishing gear. A review of relevant literature on aspects such as material, selectivity and techno-economic efficiency together with scope and main objectives of the study form the major part of the compass of the introductory chapter.This survey provided the inputs for selection of centres. The chapter presents the basis for selection of sample centres, sample units and methodology for field and experimental study.The subject matter of the fourth chapter is a basic study on gear aterials. The weathering resistance, which is an important criterion to assess the material performance, was studied for polyamide monofilament in comparison to polyamide multifilament and polyethylene twisted monofilament.The study provides supporting evidence of oxidation and characteristic C-O stretching in polyethylene and cyclic lactam .formation and presence of OH in polyamide.The study indicates that small mesh gill netting can be encouraged as a selective fishing method in the inshore waters with restrained use of 30 and 32 mm mesh sizes. The economic efficiency was assessed using standard indices such as rate of return, internal rate of return, pay back period, fishery income, energy efficiency and factor productivity. The effect of size and cost of capital and cost of production on the economics of operation is also discussed in this chapter. It was observed that level of technology did not have direct effect on economic performance.Cochin University of
Science and TechnologyIndustrial Fisheries,
Cochin University of
Science and Technolog
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Socioeconomic Impact of HIV/AIDS on Household under Free Antiretroviral Therapy in Preah Sihanouk Province, Cambodia
Objectives: The aim of this study was to compare the economic status of HIV-affected households with nonaffected households and explore the economic impact of HIV/AIDS on HIV-affected households under high coverage of free antiretroviral therapies (ART). Design and methods: We conducted a cross-sectional study in Preah Sihanouk Province, Cambodia in February and March 2008. We recruited HIV-positive participants (n=285) from a referral hospital and five health centers, and other 285 HIV-negative participants. We interviewed them using a questionnaire and compared the differences of economic status such as household income, expenditure, assets as well as medical cost, education cost, transportation cost for health services and funeral cost between the households of HIV-positive participants (HIV-positive households) and the households of HIV-negative participants (HIV-negative households). Results: Compared to the negative households, the HIV-positive households were more likely to have lower household income (p\u3c0.001), household expenditure (p\u3c0.001), assets (p\u3c0.001), education cost (p=0.001) and medical cost (p\u3c0.001). Among the HIV-positive households, the proportion of medical cost to the household expenditure was 1.3%, which was lower than that of the HIV-negative households. On the contrary, the economic burden for transportations for medical service and funeral cost was much higher among the HIV-positive households compared to the HIV-negative households. Conclusions: The HIV-positive households had worse economic status compared to the negative households. Though medical cost was lower than that of the negative households under high coverage of free ART, the HIV positives were still suffering from high economic burden in non health related living cost. From the results of our study, we suggest that the government and global agencies should support their living beyond health
Quantifying temporal variability in the metacommunity structure of stream fishes : the influence of non-native species and environmental drivers
Abstract Most studies characterize metacommunities
based on a single snapshot of the spatial structure,
which may be inadequate for taxa with high migratory
behavior (e.g., fish). Here, we applied elements of
metacommunity structure to examine variations in the
spatial distributions of stream fishes over time and to
explore possible structuring mechanisms. Although
the major environmental gradients influencing species
distributions remained largely the same in time, the
best-fit pattern of metacommunity structure varied
according to sampling occasion and whether or not we included non-native species in the analyses. Quasi-
Clementsian and Clementsian structures were the
predominant best-fit structures, indicating the importance
of species turnover among sites and the
existence of more or less discrete community boundaries.
The environmental gradient most correlated
with metacommunity structure was defined by altitude,
area of artificial ponds in the catchment, and
dissolved oxygen content. Our results suggest that the
best-fit metacommunity structure of the native species
can change in time in this catchment due to seasonal
changes in distribution patterns. However, the distribution
of non-native species throughout the landscape
homogenizes the temporal variability in metacommunity
structure of native species. Further studies are
necessary from other regions to examine best-fit
metacommunity structures of stream fishes within
relatively short environmental gradients
Intracellular traffic and fate of protein transduction domains HIV-1 TAT peptide and octaarginine. Implications for their utilization as drug delivery vectors
Transduction domains such as those derived from the HIV-TAT protein are candidate vectors for intracellular delivery of therapeutic macromolecules such as DNA and proteins. The mechanism by which they enter cells is controversial, and very little spatial information regarding the downstream fate of these peptides from the plasma membrane is available. We studied endocytic traffic of fluorescent conjugates of HIV-TAT peptide and octaarginine in human hematopoietic cell lines K562 (CD34-) and KG1a (CD34+) and substantiated our findings in epithelia cells. Both peptides were efficiently internalized to endocytic pathways of both hematopoietic cell lines; however, comparative analysis of the intracellular location of the peptides with endocytic probes revealed major differences in spatial organization of their endocytic organelles and their interaction with the peptides at low temperatures. Double labeling confocal microscopy demonstrates that prelabeled lysosomes of all the tested cells are accessible to internalized peptides within 60 min of endocytic uptake. Incubation of cells with nocodazole and cytochalasin D inhibited peptide traffic from early to late endosomal structures, demonstrating a cytoskeletal requirement for lysosomal delivery. Disruption of Golgi and endoplasmic reticulum dynamics was without effect on peptide localization, suggesting that endosomes and lysosomes rather than these organelles are the major acceptor compartments for these molecules
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