1
|
Torque teno sus virus k2a (TTSuVk2a) in wild boars from northeastern Patagonia, Argentina. Braz J Microbiol 2024; 55:981-989. [PMID: 38286944 PMCID: PMC10920574 DOI: 10.1007/s42770-024-01261-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 01/14/2024] [Indexed: 01/31/2024] Open
Abstract
Torque teno sus virus k2a (TTSuVk2a) is a member of the family Anelloviridae that can establish persistent infections in both domestic pigs and wild boars. Its association with diseases has not been precisely elucidated, and it is often considered only as a commensal virus. This infectious agent has been reported in herds throughout the world. In this study, we investigated the detection rate and diversity of TTSuVk2a in free-living wild boars from northeastern Patagonia, Argentina. Total DNA was extracted from tonsil samples of 50 animals, nested PCR assays were carried out, and infection was verified in 60% of the cases. Sequence analysis of the viral non-coding region revealed distinct phylogenetic groups. These clusters showed contrasting patterns of spatial distribution, which presented statistically significant differences when evaluating spatial aggregation. In turn, the sequences were compared with those available in the database to find that the clusters were distinguished by having similarity with TTSuVk2a variants of different geographic origin. The results suggested that Patagonian wild boar populations are bearers of diverse viral strains of Asian, European, and South American provenance.
Collapse
|
2
|
Tuberculosis in Wild Pigs from Argentina. ECOHEALTH 2024; 21:71-82. [PMID: 38727761 DOI: 10.1007/s10393-024-01681-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 03/19/2024] [Indexed: 05/26/2024]
Abstract
Mycobacterium bovis, a member of the Mycobacterium tuberculosis complex (MTC) and non-tuberculous Mycobacteria (NTM), may infect wild and domestic mammals, including humans. Although cattle are the main hosts and spreaders of M. bovis, many wildlife hosts play an important role worldwide. In Argentina, wild boar and domestic pigs are considered important links in mammalian tuberculosis (mTB) transmission. The aim of this work was to investigate the presence of M. bovis in wild pigs from different regions of Argentina, to characterize isolates of M. bovis obtained, and to compare those with other previously found in vertebrate hosts. A total of 311 samples from wild pigs were obtained, and bacteriological culture, molecular identification and genotyping were performed, obtaining 63 isolates (34 MTC and 29 NTM). Twelve M. bovis spoligotypes were detected. Our findings suggest that wild pigs have a prominent role as reservoirs of mTB in Argentina, based on an estimated prevalence of 11.2 ± 1.8% (95% CI 8.0-14.8) for MTC and the frequency distribution of spoligotypes shared by cattle (75%), domestic pigs (58%) and wildlife (50%). Argentina has a typical scenario where cattle and pigs are farm-raised extensively, sharing the environment with wildlife, creating conditions for effective transmission of mTB in the wildlife-livestock-human interface.
Collapse
|
3
|
Investigation of liver-targeted peripheral focused ultrasound stimulation (pFUS) and its effect on glucose homeostasis and insulin resistance in type 2 diabetes mellitus: a proof of concept, phase 1 trial. QJM 2023; 116:667-685. [PMID: 37243693 DOI: 10.1093/qjmed/hcad098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 04/26/2023] [Indexed: 05/29/2023] Open
Abstract
BACKGROUND Mechanical waves produced by ultrasound pulses have been shown to activate mechanosensitive ion channels and modulate peripheral nerves. However, while peripheral ultrasound neuromodulation has been demonstrated in vitro and in pre-clinical models, there have been few reports of clinical tests. AIM We modified a diagnostic imaging system for ultrasound neuromodulation in human subjects. We report the first safety and feasibility outcomes in subjects with type 2 diabetes (T2D) mellitus and discuss these outcomes in relation to previous pre-clinical results. DESIGN The study was performed as an open label feasibility study to assess the effects of hepatic ultrasound (targeted to the porta hepatis) on glucometabolic parameters in subjects with T2D. Stimulation (peripheral focused ultrasound stimulation treatment) was performed for 3 days (i.e. 15 min per day), preceded by a baseline examination and followed by a 2-week observation period. METHODS Multiple metabolic assays were employed including measures of fasting glucose and insulin, insulin resistance and glucose metabolism. The safety and tolerability were also assessed by monitoring adverse events, changes in vital signs, electrocardiogram parameters and clinical laboratory measures. RESULTS AND CONCLUSION We report post-pFUS trends in several outcomes that were consistent with previous pre-clinical findings. Fasting insulin was lowered, resulting in a reduction of HOMA-IR scores (P-value 0.01; corrected Wilcoxon signed-rank test). Additional safety and exploratory markers demonstrated no device-related adverse impact of pFUS. Our findings demonstrate that pFUS represents a promising new treatment modality that could be used as a non-pharmaceutical adjunct or even alternative to current drug treatments in diabetes.
Collapse
|
4
|
Detection of porcine circovirus 2, porcine parvovirus 1, and torque teno sus virus k2a in wild boars from northeastern Patagonia, Argentina. Arch Virol 2023; 168:208. [PMID: 37462757 DOI: 10.1007/s00705-023-05831-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 06/06/2023] [Indexed: 07/21/2023]
Abstract
Wild boars can act as a reservoir of pathogenic viruses that affect the pig industry. Here, we assessed the presence of porcine circovirus 2, porcine parvovirus 1, and torque teno sus virus k2a in wild boars in northeastern Patagonia (Argentina). Total DNA was extracted from the tonsils of 27 animals (collected between early 2016 and mid-2019) and used to prepare sample pools, which were subjected to viral detection through two-round PCR assays. Sequencing of the amplification products and phylogenetic analysis confirmed the occurrence of all of the aforementioned infectious agents.
Collapse
|
5
|
Monitoring macroplastic ingestion by birds and marine mammals in northeastern Patagonia, Argentina. MARINE POLLUTION BULLETIN 2022; 185:114288. [PMID: 36330942 DOI: 10.1016/j.marpolbul.2022.114288] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 10/14/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
Plastic debris is of particular concern due to its abundance, and its persistence in the environment. In Argentina, the impact of plastic debris has been documented with a significant increase during the last years. However, evidence of debris ingestion remains low compared to other regions of the world. Between 2020 and 2022, one of the twenty-three individuals analyzed in this study (seven species: five birds and two marine mammals) had ingested plastic debris. A single macroplastic piece was found in the Great Grebe (Podiceps major). It was a hardy yellow elastic band that appears to be a packaging band in agreement with the debris category with the greatest number of reports. This study is a contribution to the few records of plastic ingestion in birds, on the east coast of South America.
Collapse
|
6
|
Serological survey suggests circulation of coronavirus on wild Suina from Argentina, 2014-2017. ECOHEALTH 2022; 19:159-163. [PMID: 35652967 PMCID: PMC9161765 DOI: 10.1007/s10393-022-01591-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 04/10/2022] [Indexed: 06/15/2023]
Abstract
Swine coronaviruses affecting pigs have been studied sporadically in wildlife. In Argentina, epidemiological surveillance of TGEV/PRCV is conducted only in domestic pigs. The aim was to assess the prevalence of TGEV/PRCV in wild Suina. Antibodies against these diseases in wild boar and captive collared peccary were surveyed by ELISA. Antibodies against TGEV were found in three collared peccaries (n = 87). No TGEV/PRCV antibodies were detected in wild boar (n = 160). Preventive measures should be conducted in contact nodes where the transmission of agents may increase. Epidemiological surveillance in wildlife populations and in captive animals before their reintroduction should be attempted.
Collapse
|
7
|
Patterns of genetic variation on wild pig ( Sus scrofa) populations over a complete range of the species in Argentina. MAMMALIA 2022. [DOI: 10.1515/mammalia-2021-0141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In Argentina, wild pigs (Sus scrofa) are represented by wild boars and feral pigs. These populations inhabit a wide territory due to natural dispersion and human translocation. Previous studies in other countries have detected crossbreeding between the different morphotypes, even with domestic pigs. This crossing can lead to introgression of improved traits in the wild population, which would increase the invasive potential and, therefore, the damage to native ecosystems. The aim of this work was to obtain the patterns of genetic variability throughout its current distribution in Argentina, in order to elucidate genetic relationships between wild boar and feral pig populations through the molecular marker control region. For this purpose, studies of genetic variability and population structure were carried out using 377 sequences from Argentinian wild pigs. The high values of haplotype and nucleotide diversity (Hd = 0.866 and π = 0.00959) obtained, and the cluster analyses (SAMOVA and BAPS) could indicate mixing between wild pigs and/or with domestic pigs. The star-like shapes observed in the haplotype network and neutral tests (Fu’s Fs and Tajima’s D) are consistent with a recent population expansion, supporting previous reports that indicate crossbreeding increases invasive potential.
Collapse
|
8
|
A potential cause of asbestos-related granulomatosis due to adulterant contamination in a drug abuser. Virchows Arch 2020; 478:361-366. [PMID: 32519036 DOI: 10.1007/s00428-020-02863-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/26/2020] [Accepted: 06/02/2020] [Indexed: 10/24/2022]
Abstract
Drug adulterants containing contaminants have been known to cause lung disease by inhalation or intravenous intake. Talcosis due to intravenous talc injection has been widely described in the literature, whereas the hypothesis of granulomatosis due to asbestos related to adulterated cocaine injection has not yet been explored. Herein, a case of pulmonary granulomatosis due to asbestos fibres related to cocaine injection in a young woman is described. Inorganic material in the lung was first individuated by light microscopy and last was identified using the SEM-EDX method. This case is unique since the occupational and passive inhalation of asbestos was excluded with absolute certainty.
Collapse
|
9
|
Characterisation of gunshot residues from non-toxic ammunition and their persistence on the shooter’s hands. Int J Legal Med 2020; 134:1083-1094. [DOI: 10.1007/s00414-020-02261-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 01/31/2020] [Indexed: 12/22/2022]
|
10
|
Variation in gynecological oncology follow-up practice: Attributable to cancer centers or to patient characteristics? A Piedmont Regional Oncology Network Study. TUMORI JOURNAL 2018; 97:551-8. [DOI: 10.1177/030089161109700502] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Aims and background Although guidelines recommend minimalist follow-up, there is wide variability in gynecological oncology practice. The aims of this study were to describe between-center differences in the follow-up of endometrial, ovarian, and uterine cervical cancer; to identify the determinants of test prescription; to estimate the related costs; and to assess the weight of center habits and patient characteristics as sources of unexplained variability. Methods and study design The medical records of patients treated between August 2004 and July 2005 for gynecological malignancies and followed up for the detection of recurrent disease were retrospectively collected from 29 centers of the Piedmont Oncology Network. Multivariate multilevel analyses were performed to study the determinants of test prescription and costs. Results Analyses were performed on 351 patients (median follow-up: 578 days). The unexplained variability in computed tomography prescriptions (26%), ultrasound prescriptions (17%), and total cost of follow-up (15%) can be attributed to center habits, independenty of the clinical characteristics of the patients. Conclusions Much of the unexplained variability in the follow-up for gynecological malignancies is attributable to different habits of centers belonging to a cancer network. These results prompted us to design a multicenter randomized controlled trial to compare minimalist versus intensive follow-up programs in endometrial cancer.
Collapse
|
11
|
Hydrotalcite based Ni–Fe/(Mg, Al)Ox catalysts for CO2 methanation – tailoring Fe content for improved CO dissociation, basicity, and particle size. Catal Sci Technol 2018. [DOI: 10.1039/c7cy02099f] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Advantages of hydrotalcite-like precursors and the synergistic effect of bimetallic Ni–Fe alloys are combined and the most appropriate amount of Fe identified with respect to activity, selectivity and stability.
Collapse
|
12
|
Trichinellosis surveillance in wildlife in northeastern argentine patagonia. VETERINARY PARASITOLOGY- REGIONAL STUDIES AND REPORTS 2017; 11:32-35. [PMID: 31014615 DOI: 10.1016/j.vprsr.2017.11.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Revised: 11/07/2017] [Accepted: 11/21/2017] [Indexed: 10/18/2022]
Abstract
Trichinellosis is a food-borne parasitic disease produced by different nematodes of the genus Trichinella. In Argentina, it is an endemic zoonosis and an important public health problem. The infection has been detected in domestic and wild animals. Trichinella spp. muscle larvae have anaerobic metabolism, which allows their survival in decaying tissues. The aim of this study was to evaluate the presence of Trichinella spp. in carnivorous and/or scavenger wild vertebrates - birds, mammals and reptiles - in northeastern Argentine Patagonia. Skeletal muscle samples from 141 animals, which were found killed on northeastern Argentine Patagonia roads, were analyzed by the artificial digestion method. None of the 141 samples were positive for larvae of Trichinella. These results suggest that Trichinella does not use these species to complete its cycle in this region of the continent and the absence of a significant alteration in the study area makes it difficult to transmit parasitic diseases. However, due to the limited number of samples assessed for some species, this could not be confirmed. The relevance of this study resides in the fact that it is the first systematic study in South America that considers birds, reptiles and mammals as potential hosts for Trichinella.
Collapse
|
13
|
Bimetallische Ni-Fe-Hydrotalcit-Katalysatoren für die effektive Umsetzung von CO 2zu Erdgas. CHEM-ING-TECH 2016. [DOI: 10.1002/cite.201650159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
14
|
Abstract
Emerging concepts and novel possibilities in catalysis by zeolites for a new scenario in chemical and energy vector production.
Collapse
|
15
|
A Safe and Simple Laparoscopic Cold Knife Section Technique for Bulky Uterus Removal. J Laparoendosc Adv Surg Tech A 2015; 25:755-9. [PMID: 26275047 DOI: 10.1089/lap.2014.0640] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Morcellation of a bulky uterus after total laparoscopic hysterectomy (TLH) is a challenge for those dealing with advanced laparoscopic surgery. However, there are no laparoscopic standardized procedures available to date. We developed a laparoscopic cold knife technique with the aim of demonstrating a simple and reproducible method of sectioning and vaginal retrieval of the bulky uterus. MATERIALS AND METHODS From June 2012 to June 2014, patients who underwent TLH for benign indication, with a uterus size over 12 gestational weeks, were prospectively admitted into the clinical study. Before specimen vaginal retrieval, uterine section was achieved by Chardonnens' cold knife with the aim of obtaining two uterus halves sectioned longitudinally and held together only by the posterior cervical wall. We performed the procedure in a containment system to avoid myometrial spillage into the abdomen. RESULTS Twenty-nine women with a bulky uterus were treated by TLH and the cold knife section technique. The uterine size ranged from 240 to 850 g (median, 460 g), and the average morcellation operative time was 11.3 minutes. All procedures were completed successfully without complications. CONCLUSIONS Our data suggest that the cold knife uterine section technique after TLH is a feasible, simple, and reproducible method of bulky uterus morcellation, even if further research is advisable to fully evaluate the advantages of this procedure.
Collapse
|
16
|
Role of Feed Composition on the Performances of Pd-Based Catalysts for the Direct Synthesis of H2O2. Top Catal 2014. [DOI: 10.1007/s11244-014-0289-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
17
|
Comparison of specimens for detection of porcine reproductive and respiratory syndrome virus infection in boar studs. Transbound Emerg Dis 2013; 62:295-304. [PMID: 23895185 DOI: 10.1111/tbed.12135] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Indexed: 11/30/2022]
Abstract
Porcine reproductive and respiratory syndrome virus (PRRSV)-contaminated semen from boars is a route of transmission to females, and early detection of PRRSV infection in boars is a key component in sow farm biosecurity. The purpose of this study was to determine the optimum diagnostic specimen(s) for the detection of acute PRRSV infection in boars. Individually housed boars (n = 15) were trained for semen and oral fluid collection and then vaccinated with a commercial PRRSV modified live virus vaccine. Starting on the day of vaccination and for 14 days thereafter, oral fluid specimens were collected daily from all boars. The 15 boars were subdivided into three groups of 5, and serum, blood swabs and 'frothy saliva' were collected at the time of semen collection on a 3-day rotation. Frothy saliva, derived from the submandibular salivary gland, is produced by aroused boars. Semen was centrifuged, and semen supernatant and cell fractions were tested separately. All samples were randomly ordered and then tested by PRRSV real-time quantitative reverse-transcription polymerase chain reaction assay (rRT-PCR) and PRRSV antibody ELISA. In this study, a comparison of serum, blood swab, and oral fluid rRT-PCR results found no statistically significant differences in the onset of detection or proportion of positives, but serum was numerically superior to oral fluids for early detection. Serum and oral fluid provided identical rRT-PCR results at ≥ 5 day post-vaccination. Likewise, the onset of detection of PRRSV antibody in serum, oral fluid and frothy saliva was statistically equivalent, with serum results again showing a numerical advantage. These results showed that the highest assurance of providing PRRSV-negative semen to sow farms should be based on rRT-PCR testing of serum collected at the time of semen collection. This approach can be augmented with oral fluid sampling from a random selection of uncollected boars to provide for statistically valid surveillance of the boar stud.
Collapse
|
18
|
On the Nature of Selective Palladium-Based Nanoparticles on Nitrogen-Doped Carbon Nanotubes for the Direct Synthesis of H2O2. ChemCatChem 2013. [DOI: 10.1002/cctc.201200914] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
19
|
Variation in gynecological oncology follow-up practice: attributable to cancer centers or to patient characteristics? A Piedmont Regional Oncology Network Study. TUMORI JOURNAL 2012. [PMID: 22158482 DOI: 10.1700/989.10710] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
AIMS AND BACKGROUND Although guidelines recommend minimalist follow-up, there is wide variability in gynecological oncology practice. The aims of this study were to describe between-center differences in the follow-up of endometrial, ovarian, and uterine cervical cancer; to identify the determinants of test prescription; to estimate the related costs; and to assess the weight of center habits and patient characteristics as sources of unexplained variability. METHODS AND STUDY DESIGN The medical records of patients treated between August 2004 and July 2005 for gynecological malignancies and followed up for the detection of recurrent disease were retrospectively collected from 29 centers of the Piedmont Oncology Network. Multivariate multilevel analyses were performed to study the determinants of test prescription and costs. RESULTS Analyses were performed on 351 patients (median follow-up: 578 days). The unexplained variability in computed tomography prescriptions (26%), ultrasound prescriptions (17%), and total cost of follow-up (15%) can be attributed to center habits, independenty of the clinical characteristics of the patients. CONCLUSIONS Much of the unexplained variability in the follow-up for gynecological malignancies is attributable to different habits of centers belonging to a cancer network. These results prompted us to design a multicenter randomized controlled trial to compare minimalist versus intensive follow-up programs in endometrial cancer.
Collapse
|
20
|
|
21
|
Corrigendum to “Pd nanoparticles supported on N-doped nanocarbon for the direct synthesis of H2O2 from H2 and O2” [Catal. Today 157 (2010) 280–285]. Catal Today 2011. [DOI: 10.1016/j.cattod.2010.11.051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
22
|
WITHDRAWN: Corrigendum to “Pd nanoparticles supported on N-doped nanocarbon for the direct synthesis of H2O2 from H2 and O2” [Catalysis Today 157 (1–4) (2010) 280–285]. Catal Today 2011. [DOI: 10.1016/j.cattod.2010.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
23
|
Pd nanoparticles supported on N-doped nanocarbon for the direct synthesis of H2O2 from H2 and O2. Catal Today 2010. [DOI: 10.1016/j.cattod.2010.01.027] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
24
|
A proposal for statistical evaluation of the detection of gunshot residues on a suspect. SCANNING 2006; 28:142-7. [PMID: 16878785 DOI: 10.1002/sca.4950280302] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The possibility of accidental contamination of a suspect by gunshot residues (GSRs) is considered. If two hypotheses are taken into account ("the suspect has shot a firearm" and "the suspect has not shot a firearm"), the likelihood ratio of the conditional probabilities of finding a number n of GSRs is defined. Choosing two Poisson distributions, the parameter lambda of the first one coincides with the mean number of GSRs that can be found on a firearm shooter, while the parameter mu of the second one is the mean number of GSRs that can be found on a nonshooter. In this scenario, the likelihood ratio of the conditional probabilities of finding a number n of GSRs in the two hypotheses can be easily calculated. The evaluation of the two parameters lambda and mu and of the goodness of the two probability distributions is performed by using different sets of data: "exclusive" lead-antimony-barium GSRs have been detected in two populations of 31 and 28 police officers at diverse fixed times since firearm practice, and in a population of 81 police officers who stated that they had not handled firearms for almost 1 month. The results show that the Poisson distributions well fit the data for both shooters and nonshooters, and that the probability of detection of two or more GSRs is normally greater if the suspect has shot firearms.
Collapse
|
25
|
Preparation, performances and reaction mechanism for the synthesis of H2O2 from H2 and O2 based on palladium membranes. Catal Today 2005. [DOI: 10.1016/j.cattod.2005.03.054] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
26
|
[High resolution vascular ultrasonography. Personal experience]. Minerva Cardioangiol 1990; 38:311-8. [PMID: 2080019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Personal experience in the use of two-dimensional echography (B-scan) in vascular diagnosis is reported, stress being laid on its advantages with respect to other non-invasive investigations (rheography, photoplethysmography, Doppler measurement) and conventional arteriography. The importance of the technique is considered and special attention paid to the system of Biosound for defining small and initial parietal changes whose consequences, particularly if located in the carotid district, can be very serious. The result of an 18-month study using real-time Doppler ultrasonography is reported. 147 carotids and 88 lower extremities were involved and percentages were matched against conventional arteriography where the latter was carried out.
Collapse
|
27
|
Endomyocardial fibrosis in Ethiopia. ETHIOPIAN MEDICAL JOURNAL 1988; 26:193-8. [PMID: 3215180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
28
|
[Comparative evaluation of Doppler ultrasonography and plethysmographic studies in deep venous thrombosis of the legs]. Minerva Cardioangiol 1987; 35:421-4. [PMID: 2959877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
29
|
[Evaluation of the effects on the peripheral blood circulation of i.v. administration of high doses of phosphocreatinine in patients with arterial diseases]. Minerva Cardioangiol 1986; 34:671-80. [PMID: 2949160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
30
|
Abstract
Records of 134 patients treated by abdomino-perineal resection (1971-1979) were reviewed. One hundred and thirteen had curative operations. Mortality was 2.6% and morbidity was 51%. Ninety-three were evaluable and were followed for 5 to 8 years; they were evaluated for survival and pattern of recurrence. Five-year survival for Dukes' A, B, C, and D lesions was 86, 62, 31, and 0%, respectively. Thirty-seven had recurrence: Four pelvic, nine pelvic and distant, and 24 only distant lesions. The overall incidence of failures was 47%, failure rates by stage were 11% for stage A, 27% for B, 48% for C, and 70% for D. Incidence of local recurrence was significantly higher in stage C compared to stage B. Irrespective of stage, after detection of local or distant recurrence, survival did not differ. Furthermore, radiotherapy for local recurrence and chemotherapy for distant lesions did not improve survival time.
Collapse
|
31
|
[Experimental evaluation of CO2 lasers in general surgery]. MINERVA CHIR 1986; 41:311-5. [PMID: 3088482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
32
|
[Diagnostic and therapeutic up-date in toxic thyroid adenoma]. MINERVA CHIR 1986; 41:343-50. [PMID: 3725061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
33
|
[Doppler flowmeter evaluation of the effects of the administration of buflomedil (irrodan) on peripheral circulation in patients with obstructive chronic arteriopathy]. Minerva Cardioangiol 1985; 33:749-56. [PMID: 2935748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
34
|
[Validity of diagnostic studies in thyroid pathology. Retrospective study]. Minerva Med 1985; 76:1391-8. [PMID: 3895047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
In view of the growing number of examinations proposed and employed for the diagnosis of diseases of the thyroid, a retrospective evaluation was made of their validity in a series of 2500 patients (1500 operated). Attention was paid to scintiscanning, oncotropic indicators, echography, needle biopsy, thyrolymphography and thyroid hormones as aids to determining the nature of thyroid lesions and the planning of their treatment. Scintiscanning and needle biopsy proved of primary importance in determination of the nature of a lesion. Echography supplied additional, though not necessarily indispensable information. Oncotropic indicators and thyrolymphography do not appear to be useful. They do not provide data enabling a diagnostic problem to be solved, but can only help to increase any doubts that may exist. Determination of thyroid hormones is clearly indicated when planning the management of hot lesions (single, multiple or disseminated nodes), in cold lesions where thyroiditis is suspected, and in all cases where the clinical evidence suggests hypothyroidism. In euthyroid subjects requiring surgery with no objective signs of hypofunction, preoperative determinations appear to be unnecessary, where as post-operative values are of assistance in assessing the functional efficiency of the residual thyroid tissue. The conclusion to be drawn, therefore, is that diagnostic examinations should be employed in a more selective and discriminating manner.
Collapse
|
35
|
Abstract
An open label, non-controlled trial of six-month duration was designed to determine the safety and efficacy of auranofin in the treatment of 13 children with polyarticular JRA. Adverse reactions were observed in 5 of the 13 patients (38%) but only in one was it serious enough to discontinue treatment. None of the patients developed diarrhea or hematologic abnormalities. Therapeutic response was evaluated in the 11 patients who completed the six-month treatment. According to the final overall assessment 9 of the 11 children had improved, one remained unchanged and one worsened. After four months of treatment serum gold levels in 11 patients ranged between 28 and 59 micrograms/dl, with a mean value of 34 micrograms/dl. There was no correlation between serum gold levels and the frequency and severity of side effects.
Collapse
|
36
|
[Role of Doppler-flowmetry in the diagnosis of peripheral vascular diseases]. ANGIOLOGIA 1984; 36:71-85. [PMID: 6711904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
37
|
Enhancement of colonic cancer by indomethacin treatment in dimethylhydrazine pretreated rats. Carcinogenesis 1984; 5:287-9. [PMID: 6697445 DOI: 10.1093/carcin/5.2.287] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Indomethacin treatment to rats bearing dimethylhydrazine-induced colonic cancer resulted in increased mortality (p less than 0.01) and a greater incidence of metastases compared to untreated animals with the same stage of disease. It is postulated that indomethacin might have a promotional effect on the spread of autochthonous experimental colon cancer.
Collapse
|
38
|
Abstract
Anastomotic leakage after colonic resection still remains a troublesome complication of major clinical significance. Systemic (nutritional status, blood viscosity) or local factors (contamination by local germs, suture technique) seems to be implicated in the healing process of the suture line. The CO2 laser as a cutting procedure in colonic resection should provide a useful tool for its accuracy and the bactericidal properties. We have tested the strength of an end-to-end anastomosis of rat colon resected by CO2 laser, scalpel and diathermy, respectively, by measuring the bursting pressures at different postoperative days. The present study shows that the use of CO2 laser resulted in a significant increase of colonic bursting pressure at the anastomotic site.
Collapse
|
39
|
[Role of total parenteral nutrition in the treatment of postoperative external fistulas of the gastroenteric tract]. MINERVA CHIR 1983; 38:1853-5. [PMID: 6422346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
40
|
[Dilatation of Oddi's sphincter by transhepatic percutaneous approach. Preliminary considerations]. MINERVA CHIR 1983; 38:1759-62. [PMID: 6669279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
41
|
[Biliary endoprosthesis in inoperable neoplasms of the extra-hepatic bile ducts]. MINERVA CHIR 1983; 38:1755-8. [PMID: 6669278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
42
|
[Dilatation with the Grüntzig catheter in iatrogenic stenosis of the extrahepatic biliary tract]. MINERVA CHIR 1983; 38:1521-4. [PMID: 6664544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
43
|
[Embolization with absolute ethanol in the treatment of hepatic metastases]. MINERVA CHIR 1983; 38:1617-20. [PMID: 6664556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
44
|
Abstract
In a series of 26 male patients undergoing abdominoperineal resection of the rectum for malignant disease, a detailed history of sexual function was obtained, using a questionnaire before and 12 months after the operation. The overall incidence of sexual dysfunction was 61.5 per cent, total and partial erectile impotence being, respectively, both 27 per cent. Taking age into account, among men of the youngest age group (41-48 yrs), incidence of complete and partial erectile impotence was 14 per cent. In the middle age group (49-57 yrs), 22 per cent reported total and 33 per cent reported partial erectile impotence, whereas in patients of the oldest group (58-65 yrs), total erectile impotence was present in 40 per cent and partial in an additional 30 per cent. The extent of the disease (Dukes' stage) was found to be of no value as a prognostic index of postoperative sexual dysfunction. It is concluded that the age of the patients is the most important factor related to sexual activity after abdominoperineal resection for cancer.
Collapse
|
45
|
[The use of external biliary drainage through the hepatic wall in the surgical management of patients with non-neoplastic cholestatic jaundice]. MINERVA CHIR 1982; 37:1533-5. [PMID: 7145156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
46
|
[Sequential hepato-biliary scintigraphy and percutaneous cholangiography in the diagnosis of benign diseases of the biliary tract Indications and limits]. Minerva Med 1982; 73:2253-60. [PMID: 7110602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Attention is drawn to the results of a study of 45 patients with bile duct calculosis designed to assess the soundness and the limits of two diagnostic examinations (HIDA and PTC) in determining the morphological and functional characteristics of the hepatoenteric tract. The results indicated that HIDA is a useful first step in average to serious cases of icterus as a means of evaluating the functional state of liver cells and the bile ducts by determination of activity-time curves for preselected areas, whereas PTC is more important in cases of serious icterus, since it also enables the patient to be suitably prepared for surgery.
Collapse
|
47
|
[Neoplasms of the head of the pancreas. Bilio-digestive shunts or duodenocephalopancreatectomy?]. MINERVA CHIR 1982; 37:725-8. [PMID: 6808419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
48
|
[Hyperthyroidism as a rare cause of "false acute abdomen"]. Minerva Med 1982; 73:797-800. [PMID: 7070686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
4 patients affected by hyperthyroidism presenting a feature of "false acute abdomen" as main clinical sign are presented. The low incidence of that association, according to the literature, and the difficulties of a correct diagnosis, which could lead to a useless laparotomy is pointed out. The conclusion is drawn that tests of thyroid functions should be done whenever the feature of acute abdomen presents without any past history of gastro-enteric lesions.
Collapse
|
49
|
[Problems of surgical tactics in monolateral nodular lesions]. MINERVA CHIR 1982; 37:481-4. [PMID: 7088354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
50
|
[Comparative evaluation of echotomography and HIDA in the diagnosis of obstructive jaundice]. MINERVA CHIR 1982; 37:409-14. [PMID: 7088339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|