Helena Vala

1.7k total citations · 1 hit paper
71 papers, 1.4k citations indexed

About

Helena Vala is a scholar working on Parasitology, Infectious Diseases and Epidemiology. According to data from OpenAlex, Helena Vala has authored 71 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Parasitology, 15 papers in Infectious Diseases and 14 papers in Epidemiology. Recurrent topics in Helena Vala's work include Vector-Borne Animal Diseases (12 papers), Viral Infections and Vectors (9 papers) and Vector-borne infectious diseases (8 papers). Helena Vala is often cited by papers focused on Vector-Borne Animal Diseases (12 papers), Viral Infections and Vectors (9 papers) and Vector-borne infectious diseases (8 papers). Helena Vala collaborates with scholars based in Portugal, Spain and Brazil. Helena Vala's co-authors include Armando C. Duarte, Andrés Rodríguez-Seijo, Joana Lourenço, Ruth Pereira, João Pinto da Costa, Teresa Rocha‐Santos, Flávio Reis, Frederico Teixeira, Edite Teixeira‐Lemos and Cristina Mega and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Environmental Pollution.

In The Last Decade

Helena Vala

59 papers receiving 1.3k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Histopathological and molecular effects of microplastics in Eisenia andrei Bouché

2016 468 citations Helena Vala et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Helena Vala Portugal	14	458	276	252	173	161	71	1.4k
Bruno Lamas France	14	155 0.3×	68 0.2×	46 0.2×	301 1.7×	53 0.3×	27	1.9k
Laura Ramos Spain	23	207 0.5×	161 0.6×	21 0.1×	297 1.7×	68 0.4×	74	2.2k
Aoxiang Zhuge China	19	96 0.2×	39 0.1×	67 0.3×	206 1.2×	29 0.2×	28	967
Víctor J. Costela‐Ruiz Spain	15	75 0.2×	28 0.1×	60 0.2×	156 0.9×	39 0.2×	31	1.8k
Tong Xu China	22	388 0.8×	102 0.4×	13 0.1×	56 0.3×	67 0.4×	56	1.5k
Qian Wu China	22	117 0.3×	33 0.1×	36 0.1×	134 0.8×	21 0.1×	61	1.8k
Qiao Ye China	23	181 0.4×	71 0.3×	6 0.0×	202 1.2×	42 0.3×	96	1.4k
Weijie Chen China	20	81 0.2×	20 0.1×	21 0.1×	55 0.3×	101 0.6×	100	1.3k
Miao Yu China	26	36 0.1×	16 0.1×	204 0.8×	318 1.8×	67 0.4×	103	2.3k

Countries citing papers authored by Helena Vala

Since Specialization

Citations

This map shows the geographic impact of Helena Vala's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Helena Vala with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Helena Vala more than expected).

Fields of papers citing papers by Helena Vala

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Helena Vala. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Helena Vala. The network helps show where Helena Vala may publish in the future.

Co-authorship network of co-authors of Helena Vala

This figure shows the co-authorship network connecting the top 25 collaborators of Helena Vala. A scholar is included among the top collaborators of Helena Vala based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Helena Vala. Helena Vala is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Martins, Maria do Rosário Oliveira, et al.. (2025). Assessing Q Fever Exposure in Veterinary Professionals: A Study on Seroprevalence and Awareness in Portugal, 2024. Veterinary Sciences. 12(6). 512–512.

Vila-Viçosa, Maria João, et al.. (2024). Pulmonary and Gastrointestinal Parasitic Infections in Small Ruminant Autochthonous Breeds from Centre Region of Portugal—A Cross Sectional Study. Animals. 14(8). 1241–1241. 2 indexed citations

Faustino‐Rocha, Ana I., Jéssica Silva, Mónica G. Silva, et al.. (2024). Aloysia citrodora extract as a chemopreventive agent against HPV16-induced lesions: findings from K14-HPV16 mice. SHILAP Revista de lepidopterología. 416–433. 1 indexed citations

Yu, Manyou, Irene Gouvinhas, Maria João Pires, et al.. (2023). Study on the antineoplastic and toxicological effects of pomegranate (Punica granatum L.) leaf infusion using the K14-HPV16 transgenic mouse model. Food and Chemical Toxicology. 174. 113689–113689. 3 indexed citations

Oliveira, Paula A., Cármen Nóbrega, Maria João Pires, et al.. (2023). Quercus spp. extract as a promising preventive or therapeutic strategy for cancer: A systematic review. Molecular Medicine Reports. 28(3). 4 indexed citations

Reis, Flávio, et al.. (2023). TNFR2 as a Potential Biomarker for Early Detection and Progression of CKD. Biomolecules. 13(3). 534–534. 8 indexed citations

Mesquita, João R., Carla Santos, Catarina Coelho, et al.. (2022). Crimean-Congo hemorrhagic fever virus circulating among sheep of Portugal: a nationwide serosurvey assessment. Tropical Animal Health and Production. 54(4). 237–237. 7 indexed citations

Santos, Carla, Cristina Mega, Catarina Coelho, et al.. (2022). Prevalence of Toxoplasma gondii Antibodies and Risk Factor Investigation in Portuguese Veterinarians: A Matched Case–Control Study. Pathogens. 11(10). 1217–1217. 2 indexed citations

Nóbrega, Cármen, Carla Santos, Tamaš Petrović, et al.. (2019). Bulk-Tank Milk Longitudinal Serosurvey Reveals Decreasing Schmallenberg Virus Circulation in a Confined Population of Portuguese Sheep. Vector-Borne and Zoonotic Diseases. 19(9). 708–710. 1 indexed citations

10.

Nóbrega, Cármen, Tamaš Petrović, Luı́s Cardoso, et al.. (2018). Serologic evidence for Schmallenberg virus circulation at high altitude, Central Portugal, 2015-2016. Transboundary and Emerging Diseases. 65(6). 1553–1556. 6 indexed citations

11.

Nóbrega, Cármen, Carla Santos, Cristina Mega, et al.. (2018). A Nationwide Seroepidemiologic Study on Q Fever Antibodies in Sheep of Portugal. Vector-Borne and Zoonotic Diseases. 18(11). 601–604. 10 indexed citations

12.

Nogueira, António, Helena Vala, Cármen Nóbrega, et al.. (2017). Long-term treatment with chaethomellic acid A reduces glomerulosclerosis and arteriolosclerosis in a rat model of chronic kidney disease. Biomedicine & Pharmacotherapy. 96. 489–496. 6 indexed citations

13.

Mesquita, João R., et al.. (2016). Serological Evidence for Schmallenberg Virus Infection in Sheep of Portugal, 2014. Vector-Borne and Zoonotic Diseases. 16(1). 63–65. 9 indexed citations

14.

Correia, Maria José, et al.. (2016). CanisOme — The protein signatures of Canis lupus familiaris diseases. Journal of Proteomics. 136. 193–201. 12 indexed citations

15.

Ribeiro, Sandra, P. Garrido, João Carlos Fernandes, et al.. (2016). Impaired renal endothelial nitric oxide synthase and reticulocyte production as modulators of hypertension induced by rHuEPO in the rat. Life Sciences. 151. 147–156. 4 indexed citations

16.

Vala, Helena, et al.. (2015). Effect of chronic therapy with chaethomellic acid A on renal fibrosis in 5/6 nephrectomized rats: A preliminary study. Biblioteca Digital do IPB (Instituto Politecnico De Braganca). 1 indexed citations

17.

Sereno, José, Paulo Rodrigues‐Santos, Helena Vala, et al.. (2013). Different pathways and biomarkers of acute and chronic cyclosporineinduced nephrotoxicity in a rat model: focus on overexpression of mTOR and Mki67. Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT). 27(3). 197–208. 1 indexed citations

18.

Vala, Helena, et al.. (2011). Melanocytic Tumour in a Black Sheep never exposed to Ultraviolet Radiation. Journal of Comparative Pathology. 146(2-3). 160–164. 4 indexed citations

19.

Nóbrega, Cármen, et al.. (2009). Cuidados paliativos em oncologia veterinária. SHILAP Revista de lepidopterología. 1 indexed citations

20.

Vala, Helena, et al.. (2007). Paratuberculosis in Sheep from Serra da Estrela Region. Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT). 1 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact