Unexpected detection of porcine rotavirus C strains carrying human origin VP6 gene

ABSTRACT The presence of rotavirus strains in sewage samples from Cairo, Egypt (November 1998 to October 1999), and Barcelona, Spain (November 1998 to December 2002), was investigated by using a generic molecular detection method based on amplification of a VP6 gene fragment. Overall, 85.7 and 66.9% of the sewage samples from Cairo and Barcelona, respectively, were positive. Positive samples were characterized further, and VP7 and VP4 genotypes were determined. Although 30% of the positive samples from Cairo were G untypeable, the distribution of G types in the positive samples was 69.6% G1, 13% G3, 8.7% G4, and 8.7% G9. The percentage of untypeable samples was much higher for the Barcelona samples (56.5%), and the distribution in the positive samples was 56.4% G1, 31.5% G3, 6% G9, 4% G2, and 2% G5. When the P types were examined, 26.7% of the positive samples from Cairo were untypeable, and the distribution of types in the positive samples was 53.3% P[8], 30% P[6], and 16.6% P[4]. In Barcelona, 27.2% of the samples were P untypeable, and the frequencies of the types detected were 49.7% P[8], 37.2% P[4], 8.8% P[6], and 4.2% P[9]. The distribution for strains from Cairo was 38.5% P[8]G1, 27% P[6]G1, 11.5% P[4]G1, 11.5% P[8]G3, 7.7% P[6]G4, and 3.8% P[8]G9. Strikingly, equivalent frequencies of common and uncommon strains were observed for Barcelona samples, and the distribution was 38.8% P[8]G1, 30.6% P[4]G1, 11.6% P[8]G3, 6.6% P[4]G3, 5.8% P[6]G1, 1.6% P[6]G3, 1.6% P[9]G1, 0.8% P[4]G2, 0.8% P[6]G9, 0.8% P[8]G9, and 0.8% P[8]G5. Additionally, two P[−]G5 strains were isolated in Barcelona, and the porcine or human origin of these strains was unclear. Rotavirus variability exhibited not only a geographic pattern but also a temporal pattern.

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Genetic heterogeneity of the VP6 gene and predominance of G6P[5] genotypes of Brazilian porcine rotavirus C field strains

Archives of Virology ◽

10.1007/s00705-016-2750-x ◽

2016 ◽

Vol 161 (4) ◽

pp. 1061-1067 ◽

Cited By ~ 5

Author(s):

Flávia Possatti ◽

Elis Lorenzetti ◽

Alice Fernandes Alfieri ◽

Amauri Alcindo Alfieri

Keyword(s):

Genetic Heterogeneity ◽

Vp6 Gene ◽

Porcine Rotavirus

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The Effect of Several Tissue Thromboplastins on the Activation of the Abnormal Factor X (Factor X Friuli)

Thrombosis and Haemostasis ◽

10.1055/s-0038-1649393 ◽

1972 ◽

Vol 27 (03) ◽

pp. 535-542 ◽

Cited By ~ 3

Author(s):

A Girolami ◽

M Lazzarin ◽

G Molaro

Keyword(s):

Prothrombin Time ◽

Rabbit Brain ◽

Factor X ◽

Dilution Curve ◽

Human Origin ◽

Rabbit Lung ◽

Normal Ratio

SummaryThe effect of several tissue thromboplastins on the abnormal factor X (factor X Friuli) has been investigated.The prothrombin time varied between 33.6 and 69 sec. The prothrombin time percentile values (saline dilution curve and Quick’s formula for citrated plasma) varied between 6.6 and 22% and between 10.9 and 32.8%, respectively. The prothrombin time patient/normal ratio varied between 2.24 and 4.43.The factor X level varied between 3.5 and 20% of normal.Significant correlations were found to exist between the percentile factor X level and the prothrombin time in seconds, the percentile prothrombin time values and the prothrombin time patient/normal ratio. Thromboplastins of human origin yielded the lowest factor X values namely 5% thereby appearing to be practically “inert” with regard to the abnormal factor X. Thromboplastins obtained from rabbit lung on the contrary yielded the highest values, namely 15.3%. Thromboplastins obtained from simian or rabbit brain gave values intermediate between these two extremes.

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OVARIAN ASCORBIC ACID DEPLETION TEST FOR LUTEINIZING HORMONE

Acta Endocrinologica ◽

10.1530/acta.0.0560619 ◽

1967 ◽

Vol 56 (4) ◽

pp. 619-625 ◽

Cited By ~ 1

Author(s):

Hans Jacob Koed ◽

Christian Hamburger

Keyword(s):

Ascorbic Acid ◽

Luteinizing Hormone ◽

Dose Response ◽

Response Curve ◽

Dose Response Curve ◽

Human Origin ◽

Response Curves ◽

Significant Difference ◽

The Mean ◽

Different Levels

ABSTRACT Comparison of the dose-response curves for LH of ovine origin (NIH-LH-S8) and of human origin (IRP-HMG-2) using the OAAD test showed a small, though statistically significant difference, the dose-response curve for LH of human origin being a little flatter. Two standard curves for ovine LH obtained with 14 months' interval, were parallel but at different levels of ovarian ascorbic acid. When the mean ascorbic acid depletions were calculated as percentages of the control levels, the two curves for NIH-LH-S8 were identical. The use of standards of human origin in the OAAD test for LH activity of human preparations is recommended.

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Characterization of Healthy and Tumor Oral Cell Lines of Human Origin. The preliminary stage in the assessment of relevant chemical compounds with impact on dentistry

Revista de Chimie ◽

10.37358/rc.18.10.6647 ◽

2018 ◽

Vol 69 (10) ◽

pp. 2889-2894

Author(s):

Ion Virgil Corlan ◽

Adelina Cheveresan ◽

Delia Berceanu Vaduva ◽

Cristian Nica ◽

Alin Faur ◽

...

Keyword(s):

Squamous Cell Carcinoma ◽

Cell Carcinoma ◽

Cell Lines ◽

Squamous Cell ◽

Chemical Compounds ◽

Tongue Squamous Cell Carcinoma ◽

Gingival Fibroblasts ◽

Human Origin ◽

Preliminary Stage

The present study was aimed to evaluate the confluence percentage of three oral cell lines, namely primary gingival keratinocytes (PGK), primary gingival fibroblasts (HGF) and tongue squamous cell carcinoma (SCC-4). All cells have been monitored at different passages for 21 days. Evaluation of confluence percentage reveals the fact that primary gingival keratinocytes and tongue squamous cell carcinoma at small passages requires a period of about two weeks to reach a confluence of approximately 80% while for the gingival fibroblasts a period of about three times smaller is satisfactory.

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Phylogeny of 2019-nCoVs and SARS-like CoVs of Human, Bat and Pangolin Origin

International Journal of Veterinary Science ◽

10.37422/ijvs/20.078 ◽

2020 ◽

Keyword(s):

N Gene ◽

Whole Genome ◽

Human Origin ◽

Gene Sequences ◽

M Gene ◽

S Gene ◽

Shared Identity ◽

Novel Coronavirus ◽

S Genes

A novel coronavirus first broke out in Wuhan, China in December, 2019 has been declared a pandemic by WHO on March, 2020. This work aimed to search for probable ancestor of the virus, phylogeny of 2019-nCoVs and similar SL-CoVs based on the whole genome, M, N, ORF1ab, orf3a, and S gene sequences (n=84) obtained from GenBank using BLASTn software in the NCBI was done. Nucleotides of ORF3a and S-genes among 2019-nCoVs are identical, whereas its similar on the whole genome (99.9-100%), M-gene (99.7-100%), N-gene (99.9-100%) and ORF1ab-gene (99.7-100%). nCoVs are similar to bat CoV/RaTG13 on the whole genome (96.2%), M-gene (95.0%), N-gene (97%), ORF1ab-gene (95.3%), ORF3a-gene (99.1%) and S-gene (90.7%). Likewise, nCoVs exhibited homology to bat-CoVZXC21 on M-gene (93.2%), N-gene (91.5%), ORF1ab-gene (93.1%) and ORF3a-gene (94.4%). The emergent viruses shared identity to bat-CoVZC45 on N-gene (91.3%), ORF1ab-gene (92.8%) and ORF3a-gene (94.0%). In addition, pangolin-CoV/MP789 exhibited common sequences on M-gene (91.0%), N-gene (96.3%) and ORF3a-gene (93.3%) to nCoV. Furthermore, pangolin-CoV/MP789 is analogous to bat CoV/RaTG13 (91.3%) and bat-SL-CoVZXC21 (92.2%) on M-gene and to bat CoV/RaTG13 (94.8%) on N-gene. Nevertheless, nCoVs are distinct from the previously identified SL-CoVs of human origin. The present analysis indicates that nCoVs may have transmitted from bats, pangolin and/or unidentified hosts.

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Acellular dermal matrix as filler in breast-conserving surgery: warnings for a careful use

World Journal of Surgical Oncology ◽

10.1186/s12957-020-02109-x ◽

2021 ◽

Vol 19 (1) ◽

Author(s):

Gianluca Franceschini ◽

Riccardo Masetti

Keyword(s):

Acellular Dermal Matrix ◽

Breast Conserving Surgery ◽

Human Origin ◽

Dermal Matrix ◽

Adequate Knowledge ◽

Aesthetic Results ◽

Dermal Matrices ◽

Acellular Dermal ◽

Human Acellular Dermal Matrix ◽

Host Tissues

AbstractAcellular dermal matrices are biological materials of porcine, bovine, or human origin used as scaffold for reconstructive purpose in plastic surgery; these materials are well-tolerated and safely integrated in host tissues without causing resorption, contracture, and encapsulation thanks to their low antigenicity.Recently, human acellular dermal matrix has been used as a filler in breast-conserving surgery to improve aesthetic results. Adequate knowledge of biomaterials properties, appropriate skill, and careful compliance with some specific recommendations are mandatory in order to optimize outcomes and obtain a work of success.

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