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Tchoupou Saha OLF, Dubourg G, Yacouba A, Tola R, Raoult D, Lagier JC. Description of nasopharyngeal bacterial pathogens associated with different SARS-CoV-2 variants. Microb Pathog 2024; 188:106561. [PMID: 38307371 DOI: 10.1016/j.micpath.2024.106561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 01/16/2024] [Accepted: 01/25/2024] [Indexed: 02/04/2024]
Abstract
The emergence of the coronavirus pandemic facilitated the acquisition of mutations in the SARS-CoV-2 genome, resulting in the appearance of new variants over the past three years. We previously identified several taxa associated with the clinical outcome of COVID-19 disease in a retrospective study involving 120 patients (infected patients and negative subjects). However, little is known about whether the different variants could influence variations in the composition of the nasopharyngeal microbiota. In this study, we used multiplex pathogen-specific PCR to analyse the presence of nasopharyngeal bacterial pathogens from 400 SARS-CoV-2 positive patients (equally distributed in the four SARS-CoV-2 variants studied: B.1.1.7 (Alpha), B.1 0.617.2 (Delta), B.1.160 (Marseille-4), and B.1.1.529 (omicron)). We then compared them to 400 patients who tested negative for all respiratory viruses tested in this study, including SARS-CoV-2. We first observed an enrichment of Staphylococcus aureus (P ≤ .05) and Corynebacterium propinquum (P ≤ .05) in COVID-19-positive patients, regardless of the variant, compared to negative subjects. We specifically highlighted a significantly higher frequency of S. aureus (P ≤ .0001), C. propinquum (P ≤ .0001), and Klebsiella pneumoniae (P ≤ .0001), in patients infected with the omicron variant, whereas that of Haemophilus influenzae was higher in patients infected with Marseille-4 (P ≤ .001) and Alpha (P ≤ .01) variants. Our results suggest that the nasopharyngeal bacterial pathogens have their own specificity according to the SARS-CoV-2 variant and independently of the season. Additional studies are needed to determine the role of these pathogens in the evolution of the clinical outcome of patients.
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Affiliation(s)
- Ornella La Fortune Tchoupou Saha
- Aix-Marseille Université, Institut de Recherche pour le Développement (IRD), AP-HM, MEPHI, Marseille, France; IHU Méditerranée Infection, Marseille, France
| | - Grégory Dubourg
- Aix-Marseille Université, Institut de Recherche pour le Développement (IRD), AP-HM, MEPHI, Marseille, France; IHU Méditerranée Infection, Marseille, France.
| | - Abdourahamane Yacouba
- Aix-Marseille Université, Institut de Recherche pour le Développement (IRD), AP-HM, MEPHI, Marseille, France; IHU Méditerranée Infection, Marseille, France
| | | | - Didier Raoult
- Aix-Marseille Université, Institut de Recherche pour le Développement (IRD), AP-HM, MEPHI, Marseille, France; IHU Méditerranée Infection, Marseille, France
| | - Jean-Christophe Lagier
- Aix-Marseille Université, Institut de Recherche pour le Développement (IRD), AP-HM, MEPHI, Marseille, France; IHU Méditerranée Infection, Marseille, France.
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2
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Colson P, Gautret P, Delerce J, Chaudet H, Pontarotti P, Forterre P, Tola R, Bedotto M, Delorme L, Bader W, Levasseur A, Lagier J, Million M, Yahi N, Fantini J, La Scola B, Fournier P, Raoult D. The emergence, spread and vanishing of a French SARS-CoV-2 variant exemplifies the fate of RNA virus epidemics and obeys the Mistigri rule. J Med Virol 2022; 95:e28102. [PMID: 36031728 PMCID: PMC9539255 DOI: 10.1002/jmv.28102] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 07/25/2022] [Accepted: 08/25/2022] [Indexed: 01/11/2023]
Abstract
The nature and dynamics of mutations associated with the emergence, spread, and vanishing of SARS-CoV-2 variants causing successive waves are complex. We determined the kinetics of the most common French variant ("Marseille-4") for 10 months since its onset in July 2020. Here, we analyzed and classified into subvariants and lineages 7453 genomes obtained by next-generation sequencing. We identified two subvariants, Marseille-4A, which contains 22 different lineages of at least 50 genomes, and Marseille-4B. Their average lifetime was 4.1 ± 1.4 months, during which 4.1 ± 2.6 mutations accumulated. Growth rate was 0.079 ± 0.045, varying from 0.010 to 0.173. Most of the lineages exhibited a bell-shaped distribution. Several beneficial mutations at unpredicted sites initiated a new outbreak, while the accumulation of other mutations resulted in more viral heterogenicity, increased diversity and vanishing of the lineages. Marseille-4B emerged when the other Marseille-4 lineages vanished. Its ORF8 gene was knocked out by a stop codon, as reported in SARS-CoV-2 of mink and in the Alpha variant. This subvariant was associated with increased hospitalization and death rates, suggesting that ORF8 is a nonvirulence gene. We speculate that the observed heterogenicity of a lineage may predict the end of the outbreak.
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Affiliation(s)
- Philippe Colson
- IHU Méditerranée InfectionMarseilleFrance,Assistance Publique‐Hôpitaux de Marseille (AP‐HM)MarseilleFrance,Institut de Recherche pour le Développement (IRD), Microbes Evolution Phylogeny and Infections (MEPHI)Aix‐Marseille UniversityMarseilleFrance
| | - Philippe Gautret
- IHU Méditerranée InfectionMarseilleFrance,Assistance Publique‐Hôpitaux de Marseille (AP‐HM)MarseilleFrance,Institut de Recherche pour le Développement (IRD), Vecteurs—Infections Tropicales et Méditerranéennes (VITROME)Aix‐Marseille UniversityMarseilleFrance
| | | | - Hervé Chaudet
- IHU Méditerranée InfectionMarseilleFrance,Institut de Recherche pour le Développement (IRD), Vecteurs—Infections Tropicales et Méditerranéennes (VITROME)Aix‐Marseille UniversityMarseilleFrance,French Armed Forces Center for Epidemiology and Public Health (CESPA), Camp de Sainte MartheMarseilleFrance
| | - Pierre Pontarotti
- IHU Méditerranée InfectionMarseilleFrance,Centre national de la recherche scientifique (CNRS)MarseilleFrance
| | - Patrick Forterre
- Département de MicrobiologieInstitut PasteurParisFrance,Institute for Integrative Biology of the Cell (I2BC)Université Paris‐Saclay, CEA, CNRSGif‐sur‐YvetteFrance
| | - Raphael Tola
- IHU Méditerranée InfectionMarseilleFrance,Assistance Publique‐Hôpitaux de Marseille (AP‐HM)MarseilleFrance
| | | | - Léa Delorme
- IHU Méditerranée InfectionMarseilleFrance,Institut de Recherche pour le Développement (IRD), Vecteurs—Infections Tropicales et Méditerranéennes (VITROME)Aix‐Marseille UniversityMarseilleFrance,French Armed Forces Center for Epidemiology and Public Health (CESPA), Camp de Sainte MartheMarseilleFrance
| | - Wahiba Bader
- IHU Méditerranée InfectionMarseilleFrance,Institut de Recherche pour le Développement (IRD), Microbes Evolution Phylogeny and Infections (MEPHI)Aix‐Marseille UniversityMarseilleFrance
| | - Anthony Levasseur
- IHU Méditerranée InfectionMarseilleFrance,Institut de Recherche pour le Développement (IRD), Microbes Evolution Phylogeny and Infections (MEPHI)Aix‐Marseille UniversityMarseilleFrance
| | - Jean‐Christophe Lagier
- IHU Méditerranée InfectionMarseilleFrance,Assistance Publique‐Hôpitaux de Marseille (AP‐HM)MarseilleFrance,Institut de Recherche pour le Développement (IRD), Microbes Evolution Phylogeny and Infections (MEPHI)Aix‐Marseille UniversityMarseilleFrance
| | - Matthieu Million
- IHU Méditerranée InfectionMarseilleFrance,Assistance Publique‐Hôpitaux de Marseille (AP‐HM)MarseilleFrance,Institut de Recherche pour le Développement (IRD), Microbes Evolution Phylogeny and Infections (MEPHI)Aix‐Marseille UniversityMarseilleFrance
| | - Nouara Yahi
- INSERM UMR_S 1072Aix‐Marseille UniversitéMarseilleFrance
| | | | - Bernard La Scola
- IHU Méditerranée InfectionMarseilleFrance,Assistance Publique‐Hôpitaux de Marseille (AP‐HM)MarseilleFrance,Institut de Recherche pour le Développement (IRD), Microbes Evolution Phylogeny and Infections (MEPHI)Aix‐Marseille UniversityMarseilleFrance
| | - Pierre‐Edouard Fournier
- IHU Méditerranée InfectionMarseilleFrance,Assistance Publique‐Hôpitaux de Marseille (AP‐HM)MarseilleFrance,Institut de Recherche pour le Développement (IRD), Microbes Evolution Phylogeny and Infections (MEPHI)Aix‐Marseille UniversityMarseilleFrance
| | - Didier Raoult
- IHU Méditerranée InfectionMarseilleFrance,Institut de Recherche pour le Développement (IRD), Microbes Evolution Phylogeny and Infections (MEPHI)Aix‐Marseille UniversityMarseilleFrance
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Abstract
We carried out an intensive incidence, prevalence, and mortality survey of motor neuron disease (MND) in the province of Ferrara, northern Italy. Based on 72 patients, the mean incidence per year for the period 1964 through 1982 was 0.98 cases per 100,000. On December 31, 1981, the prevalence rate was 3.95 per 100,000. In the 19-year period the average mortality rate was 0.83 per 100,000 per year. The disease was more common in men, in individuals aged 50 to 70 years, and in residents in rural areas engaged in agricultural work. A retrospective case-control study, confirming a significantly higher frequency of MND in farmers and persons living in rural areas, revealed that the disease was more common in the lower social classes to which most unskilled and heavy laborers belong. In addition, a significantly increased risk for MND was found in patients with previous histories of trauma, but confounding variables may account for this association.
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Affiliation(s)
- E Granieri
- Neurological Clinic, University of Ferrara, Italy
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Granieri E, Conighi C, Tola R, Carreras M, Rosati G, Paolino E, Vicentini V, Grappa MT, Mattiuz PL. HLA and multiple sclerosis in Italy. Two population studies in northern and insular Italy. Acta Neurol (Napoli) 1987; 9:124-33. [PMID: 3508348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Granieri E, Tola R, Paolino E, Rosati G, Carreras M, Monetti VC. The frequency of multiple sclerosis in Italy: a descriptive study in Ferrara. Ann Neurol 1985; 17:80-4. [PMID: 3985590 DOI: 10.1002/ana.410170117] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Results of intensive prevalence surveys on multiple sclerosis carried out in different small regions of Italy have suggested that this country falls into the high-frequency zone for the disease. To verify this hypothesis by studying a large population, we conducted intensive incidence and prevalence survey in the province of Ferrara, northern Italy (mean population, 386,000). Based on 128 patients, the mean incidence per year for the period 1965 through 1979 was 2.2 cases per 100,000. On October 24, 1981, the prevalence rate was 46.1 cases per 100,000. The results support the view that northern Italy is a high-risk area for multiple sclerosis.
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Abstract
Worldwide investigation of the epidemiology of epilepsy has suggested wide variations in the frequency of convulsive disorders. However, descriptive studies in general populations cannot be completely comparable because of a remarkable methodological dishomogeneity in definition of epilepsy, classification of seizures, and ascertainment, collection, and selection of the cases. The position with regard to the Mediterranean people was still little known, and the few studies presently available from Italy offer underestimates of epilepsy frequency owing to incompleteness in case-collection practices and lack of information about the incidence of the disease. Therefore, to verify the true frequency of epilepsy in our country, we performed a community-based epidemiologic study of convulsive disorders in the district of Copparo (population 45,153) in northern Italy. Based on 278 accepted cases with "active" epilepsy, the prevalence per 1,000 population on December 31, 1978, was 6.2 (6.4 if standardized to the Italian population). The average annual incidence for the period 1964 through 1978 was 33.1 per 100,000 (38.3 if standardized). These results, similar to those found in other Western countries, support the view that the frequency of epilepsy in Italy as a whole is higher than that indicated by the Italian studies previously published, and suggest that epilepsy is evenly distributed in Europe and the United States. Antecedents which could be considered potential causes of epilepsy were found in 39.6%, and in 39.1% of the prevalence and incidence cases, respectively; for both prevalence and incidence groups, perinatal brain injuries were the most frequent event. This high proportion of epileptic cases with underlying causes emphasizes the urgency of planning precautionary measures in Italy to improve prenatal and perinatal medical care.
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Granieri E, Rosati G, Tola R, Pinna L, Carreras M, Manca M, Boldrini P. The frequency of multiple sclerosis in Mediterranean Europe. An incidence and prevalence study in Barbagia, Sardinia, insular Italy. Acta Neurol Scand 1983; 68:84-9. [PMID: 6637391 DOI: 10.1111/j.1600-0404.1983.tb04821.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Recent investigations on multiple sclerosis (MS) distribution in Italy, based on relatively small population groups, contradict the current thesis, derived from studies undertaken in populations exceeding 300,000, of a lower spreading of the disease in Mediterranean Europe. Intensive surveys on small populations strengthen the suggestion that Italy is a high-risk area, although MS studies based on prevalence rather than incidence could also be biased by geographic variables making prevalence unsuitable for comparing MS prevalence rates found in different years and/or zones. We report a further epidemiologic study in Barbagia, Sardinia, insular Italy, undertaken both to establish the MS incidence in the last 20 years, and to estimate a new prevalence rate. Based on 31 probable incident cases, the mean incidence per year for the years 1961-1980 was 2.9 per 100,000 (3.2 if age- and sex-standardized to the Italian population). On October 24, 1981, the prevalence per 100,000 was 65.3 (77.9 if standardized to the Italian population). These results confirm that in Barbagia, MS occurs more frequently than expected in a Mediterranean area, and give further support to the idea that MS frequency in Italy is similar to that established for most central and northern European countries.
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Granieri E, Rosati G, Tola R, Pinna L, Paolino E, D'Agostini G. Amyotrophic lateral sclerosis frequency in Italy. Incidence and prevalence in the province of Ferrara. Acta Neurol (Napoli) 1981; 3:549-57. [PMID: 7304286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Rosati G, Granieri E, Carreras M, Pinna L, Paolino E, Tola R, Aiello I, De Bastiani P. Multiple sclerosis in northern Italy. Prevalence in the province of Ferrara in 1978. Ital J Neurol Sci 1981; 2:17-23. [PMID: 6977511 DOI: 10.1007/bf02351683] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Most available Italian studies indicate that the prevalence of multiple sclerosis (MS) in Italy is lower than 20 per 100,000. Much higher prevalence figures, however, have been recently found in small communities in Sicily. On this basis, it has been suggested that the frequency the MS in Italy has been seriously underestimated and that the true prevalence for MS is probably similar to that established for northern European countries. This paper reports the results of a survey of MS in the various public health districts of the province of Ferrara. The public health districts are homogeneous medical units serving small populations and therefore represent ideal areas for epidemiological purposes. The total prevalence rate of probable MS for the whole province has been found to be at least 26.9 per 100,000. This result supports the view that the frequency of MS in Italy is higher than that indicated by most published studies, but not that Italy is an area of high risk for MS.
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Rosati G, Granieri E, Carreras M, Tola R. Multiple sclerosis in southern Europe. A prevalence study in the sociosanitary district of Copparo, northern Italy. Acta Neurol Scand 1980; 62:244-9. [PMID: 7211175 DOI: 10.1111/j.1600-0404.1980.tb03031.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The prevalence of multiple sclerosis (MS) in the Italian studies presently available is reported to be between 3.3 and 19.5 per 100,000. All these studies, however, have been undertaken in populations exceeding 300,000 and probably offer underestimates of MS frequency. Current sanitary organization in Italy is inadequate for epidemiological search and many patients with MS may be overlooked when large populations are studied. So, accurate estimates of MS frequency are possible only as a result of intensive surveys in small population groups. Prevalence figures of 53 and 32 per 100,000 have been recently reported by Dean et al. who studied the frequency of MS in small population groups in Sicily. The present study reports the results of a similar survey in the district of Copparo (population 45,153) in northern Italy. The prevalence of probable MS found in Copparo was 31 per 100,000. This result confirms the findings of Dean et al. in southern Italy and supports Dean's opinion that the true frequency of MS in Italy as a whole is higher than that indicated by the Italian studies.
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Rosati G, Govoni E, Aiello I, Granieri E, Tola R, Bragaglia MM. Hyperthyroidism as a precipitating factor of amyotrophic lateral sclerosis: a case report. Acta Neurol (Napoli) 1980; 2:166-72. [PMID: 6893385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Rosati G, Granieri E, Pinna L, Aiello I, Tola R, De Bastiani P, Pirisi A, Devoto MC. The risk of Parkinson disease in Mediterranean people. Neurology 1980; 30:250-5. [PMID: 6965773 DOI: 10.1212/wnl.30.3.250] [Citation(s) in RCA: 67] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
On the basis of previous epidemiologic studies, Parkinson disease was thought to be evenly distributed throughout the world. These studies, however, were conducted only on North European populations. The position with regard to the Mediterranean peoples was still unknown, and we therefore studied the frequency of Parkinson disease on the island of Sardinia, where some ethnic groups of the Mediterranean stock are represented. Based on 967 accepted cases, the prevalence 100,000 population on January 1, 1972, was 65.6; the average annual incidence for the period 1961 through 1971 was 4.9. These figures are one-half of the figures established for North Europeans. Our findings suggest racial differences in predisposition to Parkinson disease. Some Negroid features are present in Sardinians. If, as seems likely, Africans prove to be relatively unsusceptible to the disease, the risk for Sardinians and other Mediterranean ethnic groups might be intermediate between North Europeans and Africans.
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Rosati G, Granieri E, Pinna L, Aiello I, De Bastiani P, Tola R. The geographical distribution of multiple sclerosis, rheumatoid arthritis, rheumatic heart disease and poststreptococcal nephritis in Sardinia: climatic and socioeconomic factors. J Neurol 1978; 219:27-35. [PMID: 81282 DOI: 10.1007/bf00313366] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The comparative geography of multiple sclerosis (MS) and nonneurological diseases considered to be autoimmune is of great interest. But there are few appropriate investigations. Some have found an increase in the frequency of MS, rheumatoid arthritis and rheumatic heart disease depending on the geographic latitude. Nevertheless, the significance of the latitude effect as an indicator of a possible etiological relationship between MS and these conditions has been questioned. In this paper, the frequency of MS, rheumatoid arthritis, rheumatic heart disease and poststreptococcal nephritis is reported from Sardinia where appreciable differences in climatic and socioeconomic conditions exist. There was a positive correlation of the distribution of MS with the distribution of rheumatic heart disease and poststreptococcal nephritis. On the other hand, no correlation was found with the distribution of rheumatoid arthritis.
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Rosati G, Granieri E, Pinna L, Aiello I, De Bastiani P, Tola R, Pirisi A. Parkinson's disease. Prevalence and incidence in the Province of Sassari, North Sardinia. Acta Neurol (Napoli) 1978; 33:201-7. [PMID: 747136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Rosati G, Granieri E, Aiello I, Pinna L, De Bastiani P, Tola R. [Ataxia telangiectasia: apropos of a case with pes cavus and distal neural amyotrophy]. Acta Neurol (Napoli) 1977; 32:764-73. [PMID: 605831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Rosati G, Pinna L, Granieri E, Aiello I, Tola R, Agnetti V, Pirisi A, de Bastiani P. Studies on epidemiological, clinical, and etiological aspects of ALS disease in Sardinia, Southern Italy. Acta Neurol Scand 1977; 55:231-44. [PMID: 848275 DOI: 10.1111/j.1600-0404.1977.tb05642.x] [Citation(s) in RCA: 74] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This investigation was conducted to clarify the epidemiology of ALS disease in Sardinia. During the years 1965-1974, the average annual incidence was found to be 0.64/100,000 inhabitants. On prevalence day, October 24th, 1974, the prevalence rate was 1.56/100,000 inhabitants. A significant male predominance was found, the average annual incidence rates for men and women being 0.88 and 0.40, respectively. The peak in both sexes was reached between 60 and 69 years. ALS distribution in the study area was uniform but its occurrence was significantly higher among agricultural workers (5.28/100,000). ALS started on average at 56.58 years and its duration was 2.5 years, being significantly longer in patients under 40-years-old. The distribution of the various clinical forms was: 66 per cent conventional forms, 20 percent bulbar and 14 per cent pseudo-polyneuritic. In the bulbar type, a female predominance was found. About 96 percent of cases were sporadic and 4 per cent familial. Familial cases presented no difference from sporadic cases. Trauma was present in 10.5 percent of the cases and gastrointestinal disfunction in 13 per cent. This probably reflects some relationship between trauma and ALS, and between malnutrition and ALS. No combination of ALS, dementia and parkinsonism was observed. Dementia was associated with ALS in four cases and Parkinson's disease in one case, separately. The combination of other disease states with ALS in the present study may be simple coincidence.
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Rosati G, Pinna L, Granieri E, Aiello I, De Bastiani P, Tola R, Agnetti V, Pirisi A. The distribution of multiple sclerosis in Sardinia. Riv Patol Nerv Ment 1977; 98:46-64. [PMID: 758093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The incidence of M.S. in Sardinia has been found to be the highest in Southern Italy. On "prevalence day", October 21st, 1971, the incidence was 12.48/100,000 inhabitants, whereas the rates in Campania and in Puglia, (regions of Southern Italy at the same latitude as Sardinia) the rates were 3.3 and 4.0 respectively. In the present study, a significant female predominance was found, the rates for women and men being 15.88 and 9.03 respectively. The incidence of MS in the study area was found to be significantly higher both in areas with a cool humid climate and in communities with the lowest socioeconomic conditions. A significantly higher incidence was computed for communities with less than 5,000 inhabitants. MS incidence had no correlation with the occupational status and dietary habits, which are uniformly distributed throughout the island. The disease started at au average of 27.3 years and its duration on "prevalence day" was 13.4 years. The age of onset was found to be low in comparison with other population studies in Europe and in North-Central Italy. The age-specific curves of onset and on "prevalence day" showed two peaks, one in the second-third decade and one in the forth-fifth decade. Most of the patients with an earlier onset showed a complete disappearance of the symptoms after the first bout.
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Pardo S, Tola R, Castro De La Mata R, Cuadros A. [Extracorporeal circulation]. Acad Peru Cir 1964; 16:397-402. [PMID: 5825357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Tola R. [Cardiac surgery with extracorporeal circulation. Initial experience]. Acad Peru Cir 1964; 16:347-55. [PMID: 5825353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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