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Pereira DB, Martins JG, Oliveira MS, Lima-Júnior RS, Rocha LC, Andrade SL, Procópio REL. Leishmanicidal activity of the venoms of the Scorpions Brotheas amazonicus and Tityus metuendus. BRAZ J BIOL 2023; 83:e276872. [PMID: 38055507 DOI: 10.1590/1519-6984.276872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 10/26/2023] [Indexed: 12/08/2023] Open
Abstract
Leishmaniasis is a vector-transmitted zoonosis caused by different species of the genus Leishmania, with a wide clinical spectrum. It is a public health problem aggravated by a series of limitations regarding treatment. In the search for new therapeutic alternatives, scorpion venoms are a source of multifunctional molecules that act against the natural resistance of pathogens. This work evaluated the antileishmanial potential of Brotheas amazonicus and Tityus metuendus venoms against the promastigote forms of Leishmania amazonensis e Leishmania guyanensis. The venoms of B. amazonicus and T. metuendus were evaluated for their constituents using Fourier Transform Infrared (FTIR). Growth inhibition and death of promastigotes were evaluated in the presence of diferente crude venom concentrations (100 µg/mL, 50 µg/mL, 10 µg/mL, 1 µg/mL) after one hour of incubation at 25 °C. The FTIR spectra of both venoms exhibited bands in approximate regions, revealing that both exhibit similar functional groups. Crude venom from both scorpion species showed similar or superior leishmanicidal effects to the standart drug N-methylglucamine antimoniate. At the highest concentration of 100 µg/mL, cultures of L. guyanensis treated with the venom of B. amazonicus showed the highest mortality percentages, above 28%, while T. metuendus venom showed the highest activity against L. amazonensis, with mortality above 7%. This preliminar study demonstrates that B. amazonicus and T. metuendus venoms can be important tools in the search for new drugs Against leishmaniasis. Next step involves evaluating the activity against the amastigote forms and purifying the venom proteins in order to identify the best anti-leishmania candidates.
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Affiliation(s)
- D B Pereira
- Universidade do Estado do Amazonas - UEA, Escola Superior de Ciências da Saúde - ESA, Manaus, AM, Brasil
| | - J G Martins
- Instituto Nacional de Pesquisas da Amazônia - INPA, Manaus, AM, Brasil
| | - M S Oliveira
- Universidade do Estado do Amazonas - UEA, Escola Superior de Ciências da Saúde - ESA, Manaus, AM, Brasil
| | - R S Lima-Júnior
- Universidade do Estado do Amazonas - UEA, Escola Normal Superior - ENS, Manaus, AM, Brasil
| | - L C Rocha
- Universidade do Estado do Amazonas - UEA, Escola Superior de Ciências da Saúde - ESA, Manaus, AM, Brasil
| | - S L Andrade
- Universidade do Estado do Amazonas - UEA, Escola Superior de Ciências da Saúde - ESA, Manaus, AM, Brasil
| | - R E L Procópio
- Universidade do Estado do Amazonas - UEA, Escola Superior de Ciências da Saúde - ESA, Manaus, AM, Brasil
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Reis MB, Martins JG, Bordon KDCF, de Campos Fraga-Silva TF, de Lima Procópio RE, de Almeida BRR, Bonato VLD, Arantes EC. Pioneering in vitro characterization of macrophage response induced by scorpion venoms from the Brazilian Amazon. Toxicon 2023; 230:107171. [PMID: 37211059 DOI: 10.1016/j.toxicon.2023.107171] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/07/2023] [Accepted: 05/18/2023] [Indexed: 05/23/2023]
Abstract
There are several scorpion species of medical relevance around the world. Some of them are well characterized by their toxins and clinical outcomes. Brazilian Amazon has a great amount of these arthropods that have an impact in the scorpionism events specifically in this region of Brazil. Recently, several studies pointed out the immune system activation during scorpion envenouming as an important facet of scorpionism, inducing a sepsis-like state that culminates in clinical severity and death. In this work, we characterized the macrophage response of three species of clinical relevance in Brazilian Amazon: Tityus silvestris, T. metuendus and T. obscurus and one specie with no toxic effects to humans, Brotheas amazonicus. All the four species analyzed were able to induce pro- and anti-inflammatory cytokine production in a J774.1 murine macrophage model. This activation was dependent on TLR2/TLR4/MyD88 activation and abolished by TLRs antagonists. These results suggest that the venoms of the four species analyzed were able to induce macrophage response in agreement to the well-established immune activation by T. serrulatus venom. Our findings provide new insights into the clinical repercussions of scorpionism of uncharacterized species and point to new biotechnological applications of these venoms and possible supportive therapies in scorpionism.
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Affiliation(s)
- Mouzarllem Barros Reis
- Department of BioMolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, SP, Brazil; School of Medicine, Centro Universitário Barão de Mauá (CBM), Ribeirão Preto, SP, Brazil
| | - Jonas Gama Martins
- Graduate Program in Genetics, Conservation and Evolutionary Biology (PPG GCBEv), National Institute for Amazon Research (INPA), Manaus, AM, Brazil
| | - Karla de Castro Figueiredo Bordon
- Department of BioMolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Thais Fernanda de Campos Fraga-Silva
- Program of Basic and Applied Immunology, And Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Rudi Emerson de Lima Procópio
- Graduate Program in Biotechnology and Natural Resources of Amazon, University of the State of Amazonas (UEA), Manaus, AM, Brazil
| | | | - Vânia Luiza Deperon Bonato
- Program of Basic and Applied Immunology, And Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Eliane Candiani Arantes
- Department of BioMolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, SP, Brazil.
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Martins JG, de Castro Figueiredo Bordon K, Moreno-González JA, Almeida B, Pardal P, Lira A, Candido D, Arantes EC, Procópio R. On the noxious black Amazonian scorpion, Tityus obscurus (Scorpiones, Buthidae): Taxonomic notes, biology, medical importance and envenoming treatment. Toxicon 2023; 228:107125. [PMID: 37054995 DOI: 10.1016/j.toxicon.2023.107125] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/08/2023] [Accepted: 04/10/2023] [Indexed: 04/15/2023]
Abstract
Tityus obscurus has caused mild, moderate and severe accidents of medical relevance in the eastern Brazilian Amazon and French Guiana. Tityus obscurus has sexual dimorphism although males and females have uniform black coloration. In the Amazon, one of the habitats of this scorpion is seasonally flooded forests (igapós and várzeas). However, most stings occur in terra firme forest areas (non-flooded region), where most rural communities are located. Adults and children stung by T. obscurus may experience an "electric shock" sensation for more than 30 h after the sting. Our data shows that people inhabiting remote forest areas, including rubber tappers, fishermen and indigenous people, with no access to anti-scorpion serum, use parts of native plants, such as seeds and leaves, against pain and vomiting caused by scorpion stings. Although there is a technical effort to produce and distribute antivenoms in the Amazon, many cases of scorpion stings are geographically unpredictable in this region, due to the lack of detailed knowledge of the natural distribution of these animals. In this manuscript, we compile information on the natural history of T. obscurus and the impact of its envenoming on human health. We identify the natural sites that host this scorpion in the Amazon, in order to warn about the risk of human envenoming. The use of specific antivenom serum is the recommended treatment for accidents involving venomous animals. However, atypical symptoms not neutralized by the available commercial antivenom are reported in the Amazon region. Facing this scenario, we present some challenges to the study of venomous animals in the Amazon rainforest and possible experimental bottlenecks and perspectives for establishing a method aimed at producing an efficient antivenom.
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Affiliation(s)
- Jonas Gama Martins
- Pós-Graduação em Genética, Conservação e Biologia Evolutiva, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, AM, Brazil.
| | - Karla de Castro Figueiredo Bordon
- Departamento de Ciências BioMoleculares, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Jairo A Moreno-González
- Division of Invertebrate Zoology, American Museum of Natural History New York, Central Park West at 79th Street, 10024-5192, New York City, NY, USA
| | - Bruno Almeida
- Instituto Federal de Educação, Ciência e Tecnologia do Pará, Campus Itaituba, PA, Brazil
| | - Pedro Pardal
- Laboratório de Entomologia Médica e Animais Peçonhentos, Núcleo de Medicina Tropical, Universidade Federal do Pará (UFPA), Belém, PA, Brazil
| | - André Lira
- Universidade Federal de Campina Grande, Centro de Educação e Saúde, Cuité, PB, Brazil
| | - Denise Candido
- Laboratório de Artrópodes, Instituto Butantan, São Paulo, Brazil
| | - Eliane Candiani Arantes
- Departamento de Ciências BioMoleculares, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Rudi Procópio
- Pós-Graduação em Biotecnologia e Recursos Naturais da Amazônia, Universidade do Estado do Amazonas (UEA), Manaus, AM, Brazil
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Sousa TLF, Alves MJNN, Melo MDT, Albuquerque ALP, Martins JG, Botelho LFB. Evaluation of myocardial work in patients recovered from the severe form of COVID-19. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background/Introduction
The impact of COVID-19 goes beyond its acute form, and can lead to the persistence of symptoms and the emergence of systemic disorders, defined as Post-Covid or Long-Covid.
Purpose
Assess the late impact on the cardiorespiratory system of patients recovered from severe Covid.
Methods
We performed cross-sectional study that included patients over 18 years of age who recovered from the severe form of COVID-19 after at least 60 days of their discharge. Patients and healthy controls were enrolled to perform transthoracic echocardiography (TTE) and cardiopulmonary exercise testing (CPET).
Results
A total of 52 patients and 24 controls were enrolled. The standard TTE parameters (end diastolic diameters, left ventricular ejection fraction, diastolic function and right ventricular systolic function) showed no difference when compared to the control group. When analyzing the myocardial work, there was a higher Wasted MW (GWW): 135 mmHg% vs 84.5 mmHg% (p=0.002), with lower MW Efficiency (GWE): 94 vs. 96 (p=0.003); as well as lower values of global strain: cases = 18.6% vs. 20.1% (p=0.009). No differences were found in the Constructive MW (GWC) and MW Global Index (GWI). In the CPET data we found lower peak values for the VO2: 24 ml/kg/min vs. 32.75 ml/kg/min (p<0.001); for the Heart Rate: 162 bpm vs. 175 bpm (p<0.001); for the Ventilation: 79.3 L/min vs. 109.85 L/min (p<0.001) and Respiratory Exchange Ratio: 1.12 vs. 1.19 (p=0.004). There was no difference in the maximum load reached, neither in the oxygen pulse values and in the Ve/CO2 slope. In relation to the oxygen kinetics, there was a significant reduction in OUES%: 85% vs. 98% (p=0.03); as well as an extended T½: 112 s vs. 88.5 s (p<0.001); and a slowing of the fall in heart rate in recovery time, as measured by the Heart Rate decay: −17.32 bpm vs. −22.08 bpm (p=0.005).
Conclusion
Patients recovered from the severe form of COVID-19 had higher GWW with lower efficiency (GWE). Such findings, added to changes in oxygen kinetics during exercise, may point to a possible cardiocirculatory mechanism associated with decreased aerobic capacity.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- T L F Sousa
- Heart Institute of the University of Sao Paulo (InCor) , Sao Paulo , Brazil
| | - M J N N Alves
- Heart Institute of the University of Sao Paulo (InCor) , Sao Paulo , Brazil
| | - M D T Melo
- Heart Institute of the University of Sao Paulo (InCor) , Sao Paulo , Brazil
| | - A L P Albuquerque
- Heart Institute of the University of Sao Paulo (InCor) , Sao Paulo , Brazil
| | - J G Martins
- Heart Institute of the University of Sao Paulo (InCor) , Sao Paulo , Brazil
| | - L F B Botelho
- Heart Institute of the University of Sao Paulo (InCor) , Sao Paulo , Brazil
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de Almeida BRR, Noronha RCR, Cardoso AL, Martins C, Martins JG, Procópio REDL, Nagamachi CY, Pieczarka JC. Kinetic Activity of Chromosomes and Expression of Recombination Genes in Achiasmatic Meiosis of Tityus (Archaeotityus) Scorpions. Int J Mol Sci 2022; 23:ijms23169179. [PMID: 36012447 PMCID: PMC9408970 DOI: 10.3390/ijms23169179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/21/2022] [Accepted: 07/22/2022] [Indexed: 11/18/2022] Open
Abstract
Several species of Tityus (Scorpiones, Buthidae) present multi-chromosomal meiotic associations and failures in the synaptic process, originated from reciprocal translocations. Holocentric chromosomes and achiasmatic meiosis in males are present in all members of this genus. In the present study, we investigated synapse dynamics, transcriptional silencing by γH2AX, and meiotic microtubule association in bivalents and a quadrivalent of the scorpion Tityus maranhensis. Additionally, we performed RT-PCR to verify the expression of mismatch repair enzymes involved in crossing-over formation in Tityus silvestris gonads. The quadrivalent association in T. maranhensis showed delay in the synaptic process and long asynaptic regions during pachytene. In this species, γH2AX was recorded only at the chromosome ends during early stages of prophase I; in metaphase I, bivalents and quadrivalents of T. maranhensis exhibited binding to microtubules along their entire length, while in metaphase II/anaphase II transition, spindle fibers interacted only with telomeric regions. Regarding T. silvestris, genes involved in the recombination process were transcribed in ovaries, testes and embryos, without significant difference between these tissues. The expression of these genes during T. silvestris achiasmatic meiosis is discussed in the present study. The absence of meiotic inactivation by γH2AX and holo/telokinetic behavior of the chromosomes are important factors for the maintenance of the quadrivalent in T. maranhensis and the normal continuation of the meiotic cycle in this species.
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Affiliation(s)
- Bruno Rafael Ribeiro de Almeida
- Laboratório de Citogenética, Centro de Estudos Avançados da Biodiversidade, Instituto de Ciências Biológicas, Universidade Federal do Pará, Avenida Perimetral da Ciência, km 01, Guamá, Belem 66075-750, PA, Brazil
- Instituto Federal de Educação, Ciência e Tecnologia do Pará, Campus Itaituba, R. Universitário, s/n, Maria Magdalena, Itaituba 68183-300, PA, Brazil
| | - Renata Coelho Rodrigues Noronha
- Laboratório de Citogenética, Centro de Estudos Avançados da Biodiversidade, Instituto de Ciências Biológicas, Universidade Federal do Pará, Avenida Perimetral da Ciência, km 01, Guamá, Belem 66075-750, PA, Brazil
| | - Adauto Lima Cardoso
- Laboratório Genômica Integrativa, Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista, Distrito de Rubião Júnior, s/n, Rubião Júnior, Botucatu 18618970, SP, Brazil
| | - Cesar Martins
- Laboratório Genômica Integrativa, Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista, Distrito de Rubião Júnior, s/n, Rubião Júnior, Botucatu 18618970, SP, Brazil
| | - Jonas Gama Martins
- Pós-Graduação em Genética, Conservação e Biologia Evolutiva, Instituto Nacional de Pesquisas da Amazônia, Avenida André Araújo, 2936-Petrópolis, Manaus 69067-375, AM, Brazil
| | - Rudi Emerson de Lima Procópio
- Programa de Pós-Graduação em Biotecnologia e Recursos Naturais da Amazônia, Universidade do Estado do Amazonas (UEA), Avenida Carvalho Leal, 1777-Cachoeirinha, Manaus 69065-170, AM, Brazil
| | - Cleusa Yoshiko Nagamachi
- Laboratório de Citogenética, Centro de Estudos Avançados da Biodiversidade, Instituto de Ciências Biológicas, Universidade Federal do Pará, Avenida Perimetral da Ciência, km 01, Guamá, Belem 66075-750, PA, Brazil
| | - Julio Cesar Pieczarka
- Laboratório de Citogenética, Centro de Estudos Avançados da Biodiversidade, Instituto de Ciências Biológicas, Universidade Federal do Pará, Avenida Perimetral da Ciência, km 01, Guamá, Belem 66075-750, PA, Brazil
- Correspondence:
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Martins JG, Kawakita T, Gurganus M, Baraki D, Jain P, Papageorghiou AT, Abuhamad AZ. Influence of maternal body mass index on interobserver variability of fetal ultrasound biometry and amniotic-fluid assessment in late pregnancy. Ultrasound Obstet Gynecol 2021; 58:892-899. [PMID: 33836119 DOI: 10.1002/uog.23646] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 03/12/2021] [Accepted: 03/17/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To determine the interobserver reproducibility of fetal ultrasound biometric and amniotic-fluid measurements in the third trimester of pregnancy, according to maternal body mass index (BMI) category. METHODS This was a prospective cohort study of women with a singleton gestation beyond 34 weeks, recruited into four groups according to BMI category: normal (18.0-24.9 kg/m2 ), overweight (25.0-29.9 kg/m2) , obese (30.0-39.9 kg/m2 ) and morbidly obese (≥ 40 kg/m2 ). Multiple pregnancies, women with diabetes and pregnancies with a fetal growth, structural or genetic abnormality were excluded. In each woman, fetal biometric (biparietal diameter (BPD), head circumference, abdominal circumference (AC), femur length (FL) and estimated fetal weight) and amniotic-fluid (amniotic-fluid index (AFI) and maximum vertical pocket (MVP)) measurements were obtained by two experienced sonographers or physicians, blinded to gestational age and each other's measurements. Differences in measurements between observers were expressed as gestational age-specific Z-scores. The interobserver intraclass correlation coefficient (ICC) and Cronbach's reliability coefficient (CRC) were calculated. Bland-Altman analysis was used to assess the degree of reproducibility. RESULTS In total, 110 women were enrolled prospectively (including 1320 measurements obtained by 17 sonographers or physicians). Twenty (18.2%) women had normal BMI, 30 (27.3%) women were overweight, 30 (27.3%) women were obese and 30 (27.3%) women were morbidly obese. Except for AFI (ICC, 0.65; CRC, 0.78) and MVP (ICC, 0.49; CRC, 0.66), all parameters had a very high level of interobserver reproducibility (ICC, 0.72-0.87; CRC, 0.84-0.93). When assessing reproducibility according to BMI category, BPD measurements had a very high level of reproducibility (ICC ≥ 0.85; CRC > 0.90) in all groups. The reproducibility of AC and FL measurements increased with increasing BMI, while the reproducibility of MVP measurements decreased. Among the biometric parameters, the difference between the BMI categories in measurement-difference Z-score was significant only for FL. Interobserver differences for biometric measurements fell within the 95% limits of agreement. CONCLUSION Obesity does not seem to impact negatively on the reproducibility of ultrasound measurements of fetal biometric parameters when undertaken by experienced sonographers or physicians who commonly assess overweight, obese and morbidly obese women. © 2021 International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- J G Martins
- Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, VA, USA
| | - T Kawakita
- Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, VA, USA
| | - M Gurganus
- Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, VA, USA
| | - D Baraki
- Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, VA, USA
| | - P Jain
- Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, VA, USA
| | - A T Papageorghiou
- St George's, University of London, London, UK
- Maternal Fetal Medicine, Department of Obstetrics and Gynaecology, University of Oxford, Oxford, UK
| | - A Z Abuhamad
- Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, VA, USA
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Martins JG, Santos GC, Procópio REDL, Arantes EC, Bordon KDCF. Scorpion species of medical importance in the Brazilian Amazon: a review to identify knowledge gaps. J Venom Anim Toxins Incl Trop Dis 2021; 27:e20210012. [PMID: 34589120 PMCID: PMC8452272 DOI: 10.1590/1678-9199-jvatitd-2021-0012] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [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: 01/29/2021] [Accepted: 04/09/2021] [Indexed: 12/24/2022] Open
Abstract
Scorpionism is a relevant medical condition in Brazil. It is responsible for most accidents involving venomous animals in the country, which leads to severe symptoms that can evolve to death. In recent years, an increase of almost 50% in the incidence of scorpionism has been observed in the Northern Region, where the highest severity of envenoming has been notified since the beginning of the 21st century. This review aims to provide an in-depth assessment of public data and reports on symptoms and epidemiology of envenoming, ecological aspects of scorpions, and characterization of venoms and toxins to access the gaps that need to be filled in the knowledge of the scorpion species of medical importance from the Brazilian Amazon. A systematic search using the string words "Amazon" and "scorpion" was performed on 11 databases. No restriction on date, language or status of the publication was applied. Reports not related to the Brazilian Amazon were excluded. Therefore, 88 studies remained. It is shown that populations of scorpions of medical importance, even of the same species, may present significant toxic variations peculiar to some regions in the Brazilian Amazon, and commercial scorpion antivenoms were not able to shorten the intensity and duration of neurological manifestations in patients stung by T. silvestris, T. apiacas or T. obscurus. It is also highlighted that the toxins responsible for triggering these alterations have not been elucidated yet and this is a fruitful field for the development of more efficient antivenoms. Furthermore, the geographic distribution of scorpions of the genus Tityus in the Brazilian Amazon was revised and updated. The cumulative and detailed information provided in this review may help physicians and scientists interested in scorpionism in the Brazilian Amazon.
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Affiliation(s)
- Jonas Gama Martins
- Graduate Program in Genetics, Conservation and Evolutionary Biology
(PPG GCBEv), National Institute for Amazon Research (INPA), Manaus, AM,
Brazil
| | - Gabrielle Cristina Santos
- Department of BioMolecular Sciences, School of Pharmaceutical
Sciences of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, SP,
Brazil
| | - Rudi Emerson de Lima Procópio
- Graduate Program in Biotechnology and Natural Resources of Amazon,
University of the State of Amazonas (UEA), Manaus, AM, Brazil
| | - Eliane Candiani Arantes
- Department of BioMolecular Sciences, School of Pharmaceutical
Sciences of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, SP,
Brazil
| | - Karla de Castro Figueiredo Bordon
- Department of BioMolecular Sciences, School of Pharmaceutical
Sciences of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, SP,
Brazil
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Abuhamad A, Martins JG, Biggio JR. Diagnosis and management of fetal growth restriction: the SMFM guideline and comparison with the ISUOG guideline. Ultrasound Obstet Gynecol 2021; 57:880-883. [PMID: 34077605 DOI: 10.1002/uog.23663] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/06/2021] [Accepted: 04/09/2021] [Indexed: 06/12/2023]
Affiliation(s)
- A Abuhamad
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, VA, USA
| | - J G Martins
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, VA, USA
| | - J R Biggio
- Ochsner Health System, New Orleans, LA, USA
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Martins JG, Bentsen H, Puri BK. Eicosapentaenoic acid appears to be the key omega-3 fatty acid component associated with efficacy in major depressive disorder: a critique of Bloch and Hannestad and updated meta-analysis. Mol Psychiatry 2012; 17:1144-9; discussion 1163-7. [PMID: 22488258 DOI: 10.1038/mp.2012.25] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- J G Martins
- Academy of Nutritional Medicine, Cambridge, UK.
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Gjermo P, Bellini HT, Pereira Santos V, Martins JG, Ferracyoli JR. Prevalence of bone loss in a group of Brazilian teenagers assessed on bite-wing radiographs. J Clin Periodontol 1984; 11:104-13. [PMID: 6583209 DOI: 10.1111/j.1600-051x.1984.tb00838.x] [Citation(s) in RCA: 96] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Bite-wing radiographs were used to assess periodontal disease in 304 Brazilian 15-year-old schoolchildren from a population with a low socioeconomic status. The criterion for destructive periodontitis was a distance from the cementoenamel junction to the alveolar crest greater than 2 mm. 90 subjects were excluded, mainly due to missing first molars. Bone loss was diagnosed in 28% of the subjects. More males than females were affected. 50% of all lesions were observed adjacent to first molars. The juvenile periodontitis type of lesion was found in 8 subjects. It was concluded that in young populations bite-wing X-rays seem to be valuable in screening for individuals with incipient bone loss as well as for identification of subjects with juvenile periodontitis. In community programs regular use of this kind of roentgen examination is therefore recommended.
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Martins CR, Marcos B, Werneck RM, Martins RD, dos Santos NJ, Martins JG. [Papillon-Lefèvre syndrome. Case report]. Arq Cent Estud Fac Odontol UFMG (Belo Horiz) 1972; 9:147-51. [PMID: 4516961] [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: 01/11/2023]
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