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1. Post-mortem estimation of gestational age and maturation of new-borns by CT examination of clavicle length, femoral length and femoral bone nuclei

Author:
Marcel Bonni,   et al.   ; Katharina Feld; Friederike Körber; Frank Eifinger; Sibylle Banaschak;     Show all 5 Authors
Source:
Forensic science international 2020 v.314 pp. 110391
ISSN:
0379-0738
Subject:
clavicle; epiphyses; femur; forensic sciences; gestational age; tibia
Abstract:
... Various parameters can be used for the estimation of gestational age and maturity with arising challenges in the assessment of decomposed bodies. In order to assess gestational age and thus maturity, the study measured the femoral length, the diameter of the distal femoral epiphysis and the presence of the proximal tibial epiphysis compared to a known clavicle length. The resulting gestational age ...
DOI:
10.1016/j.forsciint.2020.110391

2. APC7 mediates ubiquitin signaling in constitutive heterochromatin in the developing mammalian brain

Author:
Azad Bonni,   et al.   ; Cole J. Ferguson; Olivia Urso; Tatyana Bodrug; Brandon M. Gassaway; Edmond R. Watson; Jesuraj R. Prabu; Pablo Lara-Gonzalez; Raquel C. Martinez-Chacin; Dennis Y. Wu; Karlla W. Brigatti; Erik G. Puffenberger; Cora M. Taylor; Barbara Haas-Givler; Robert N. Jinks; Kevin A. Strauss; Arshad Desai; Harrison W. Gabel; Steven P. Gygi; Brenda A. Schulman; Nicholas G. Brown;     Show all 21 Authors
Source:
Molecular cell 2022 v.82 no.1 pp. 90-105.e13
ISSN:
1097-2765
Subject:
anaphase; brain; cognition; heterochromatin; humans; mutation; neurons; proteomics; ubiquitin; ubiquitination
Abstract:
... Neurodevelopmental cognitive disorders provide insights into mechanisms of human brain development. Here, we report an intellectual disability syndrome caused by the loss of APC7, a core component of the E3 ubiquitin ligase anaphase promoting complex (APC). In mechanistic studies, we uncover a critical role for APC7 during the recruitment and ubiquitination of APC substrates. In proteomics analyse ...
DOI:
10.1016/j.molcel.2021.11.031

3. Activation of FOXO1 by Cdk1 in Cycling Cells and Postmitotic Neurons

Author:
Bonni, Azad,   et al.   ; Yuan, Zengqiang; Becker, Esther B.E.; Merlo, Paola; Yamada, Tomoko; DiBacco, Sara; Konishi, Yoshiyuki; Schaefer, Erik M.;     Show all 8 Authors
Source:
Science 2008 v.319 no.5870 pp. 1665-1668
ISSN:
0036-8075
Subject:
brain; cell death; cyclin-dependent kinase; mitosis; neurons; phosphorylation; transcription (genetics); transcription factors
Abstract:
... Activation of cyclin-dependent kinase 1 (Cdk1) has been linked to cell death of postmitotic neurons in brain development and disease. We found that Cdk1 phosphorylated the transcription factor FOXO1 at Ser²⁴⁹ in vitro and in vivo. The phosphorylation of FOXO1 at Ser²⁴⁹ disrupted FOXO1 binding with 14-3-3 proteins and thereby promoted the nuclear accumulation of FOXO1 and stimulated FOXO1-dependent ...
DOI:
10.1126/science.1152337

4. Threshold-based interventions for cotton pest control in West Africa: What's up 10 years later?

Author:
Gustave Bonni,   et al.   ; Pierre Jean Silvie; Alain Renou; Samuel Vodounnon; Moïse Obayomi Adegnika; Omer Héma; Patrick Prudent; Julie Sorèze; Germain Ochou Ochou; Mamoutou Togola; Djibril Badiane; Abdoulaye Ndour; Pikassalé Komlan Akantetou; Bassarou Ayeva; Thierry Brévault;     Show all 15 Authors
Source:
Crop protection 2013 v.43 pp. 157-165
ISSN:
0261-2194
Subject:
Aphis gossypii; Diparopsis; Earias insulana; Gossypium hirsutum; Helicoverpa armigera; Polyphagotarsonemus latus; Thaumatotibia; bolls; cotton; insect larvae; insecticides; mites; pest control; pest monitoring; pesticide application; pests; plant protection; Benin; Burkina Faso; Cameroon; Cote d'Ivoire; Mali; Senegal
Abstract:
... In the late 1980s, after a long period during which insecticides were sprayed at preset dates to control cotton (Gossypium hirsutum L.) pests and their damage, some French-speaking countries in sub-Saharan areas decided to disseminate a special form of crop protection approach among smallholders, i.e. targeted staggered control (LEC, for Lutte étagée ciblée). According to this approach, decisions ...
DOI:
10.1016/j.cropro.2012.09.006

5. Nutrients dynamics in water and sediment of the Bonny Estuary, Niger Delta, Nigeria

Author:
Magdalene Okeh Nafagha-Lawal; Agatha Ebicaelar Ojimelukwe; Elizabeth Kariye Lelei; Arinze Onyekwelu Uche; Philomina Ehiedu Kika; Sorbari Igbiri; Bolaji Bernard Babatunde; Francis David Sikoki
Source:
Environmental monitoring and assessment 2022 v.194 no.7 pp. 510
ISSN:
0167-6369
Subject:
biochemical oxygen demand; colorimetry; ecology; estuaries; humans; nitrates; oxygen; pH; phosphates; river deltas; seasonal variation; sediments; surface water; temperature; titration; total organic carbon; turbidity; water quality; Nigeria
Abstract:
... Surface water and sediment from Bonny Estuary, Nigeria, were assessed to determine the nutrient dynamics. Nutrients (nitrates, phosphates, and total organic carbon (TOC)) and some physicochemical parameters of water samples are collected from three sampling stations along the Bonny Estuary during wet seasons (April 2017, 2018, and 2019) and dry seasons (November 2017, 2018, and 2019). Physicochemi ...
DOI:
10.1007/s10661-022-10148-y

6. A Calcium-Regulated MEF2 Sumoylation Switch Controls Postsynaptic Differentiation

Author:
Bonni, Azad,   et al.   ; Shalizi, Aryaman; Gaudillière, Brice; Yuan, Zengqiang; Stegmůller, Judith; Shirogane, Takahiro; Ge, Qingyuan; Tan, Yi; Schulman, Brenda; Harper, J. Wade;     Show all 10 Authors
Source:
Science 2006 v.311 no.5763 pp. 1012-1017
ISSN:
0036-8075
Subject:
acetylation; calcium signaling; cerebral cortex; claws; dendrites; dephosphorylation; morphogenesis; repressor proteins; synapse; transcription (genetics)
Abstract:
... Postsynaptic differentiation of dendrites is an essential step in synapse formation. We report here a requirement for the transcription factor myocyte enhancer factor 2A (MEF2A) in the morphogenesis of postsynaptic granule neuron dendritic claws in the cerebellar cortex. A transcriptional repressor form of MEF2A that is sumoylated at lysine-403 promoted dendritic claw differentiation. Activity-dep ...
DOI:
10.1126/science.1122513

7. Baseline PAHs, N-PAHs and 210Pb in Segment Samples from Bodo Creek: Comparison with Bonny Estuary, Niger Delta

Author:
Ihuoma N. Anyanwu; Francis D. Sikoki; Kirk T. Semple
Source:
Water, air, and soil pollution 2021 v.232 no.9 pp. 366
ISSN:
0049-6979
Subject:
air; anthracenes; estuaries; gas chromatography; mass spectrometry; oils; phenanthrenes; quinoline; radioactivity; remediation; river deltas; sediments; soil pollution; streams; surface water; toxicity
Abstract:
... Polycyclic aromatic hydrocarbons (PAHs), the nitrogen-containing analogues (N-PAHs) and lead 210 (²¹⁰Pb) were measured in 2-cm interval core segments from Bodo Creek to evaluate impact of oil pollution in the waterbody. PAHs and N-PAHs were measured by gas chromatography analysis with mass spectrometry detection, and ²¹⁰Pb activity concentration was determined by alpha spectrometry measurement. Da ...
DOI:
10.1007/s11270-021-05316-8

8. Seasonal to decadal scale shoreline changes along the Cameroonian coastline, Bay of Bonny (1986 to 2020)

Author:
Njutapvoui F. Nourdi; Onguene Raphael; Abessolo O. Grégoire; Rudant Jean Paul; Bogning Sakaros; Stieglitz Thomas; Tomedi E. Minette
Source:
Regional studies in marine science 2021 v.45 pp. 101798
ISSN:
2352-4855
Subject:
Landsat; climate; coasts; estuaries; evolution; humans; marine science; sediments; shorelines; space and time; summer; Cameroon; Gulf of Guinea
Abstract:
... The Bay of Bonny, located along the Cameroon coastline, is home to diverse ecosystems. It is under significant pressure from large human activity, but remains very little studied, like much of the Gulf of Guinea. In order to understand its long-term shoreline variations and the role the wave regime plays in the evolution of the coastline, a study was conducted on the basis of optical image archive ...
DOI:
10.1016/j.rsma.2021.101798

9. The presence of microcystins in the coastal waters of Nigeria, from the Bights of Bonny and Benin, Gulf of Guinea

Author:
Medina O Kadiri; Solomon Isagba; Jeffrey U Ogbebor; Osasere A. Omoruyi; Timothy E. Unusiotame-Owolagba; Adriana Sturion Lorenzi; Maria do Carmo Bittencourt-Oliveira; Mathias Ahii Chia
Source:
Environmental science and pollution research 2020 v.27 no.28 pp. 35284-35293
ISSN:
0944-1344
Subject:
DNA; Oscillatoria; Trichodesmium; biomass; environmental health; freshwater; genes; microcystins; pollution; research; rivers; toxicity; Benin; Germany; Gulf of Guinea; Nigeria
Abstract:
... Microcystins (MCs) are the most studied toxins of cyanobacteria in freshwater bodies worldwide. However, they are poorly documented in coastal waters in several parts of the world. In this study, we investigated the composition of cyanobacteria and the presence of microcystins (MCs) in several coastal aquatic ecosystems of Nigeria. Direct morphological analysis revealed that members of the genus O ...
DOI:
10.1007/s11356-020-09740-x

10. Hydrochemistry and heavy metals concentrations in sediment of Woji creek and Bonny estuary, Niger Delta, Nigeria

Author:
L.B. Ibanga; J.A. Nkwoji; A.I. Usese; I.C. Onyema; L.O. Chukwu
Source:
Regional studies in marine science 2019 v.25 pp. 100436
ISSN:
2352-4855
Subject:
anthropogenic activities; arsenic; atomic absorption spectrometry; biochemical oxygen demand; chromium; coastal water; cobalt; copper; estuaries; heavy metals; hydrochemistry; iron; lead; manganese; marine science; nickel; pH; river deltas; salinity; seasonal variation; sediments; streams; surface water; surface water temperature; total organic carbon; zinc; Nigeria
Abstract:
... Physicochemical characteristics of the surface water and heavy metals levels in sediment of Woji creek and upper reaches of the Bonny estuary, Niger Delta, Nigeria were investigated between October, 2012 and September, 2014. Ten sampling stations were established along the main creek course based on accessibility and proximity gradient from expected pollution sources. Water and sediment samples we ...
DOI:
10.1016/j.rsma.2018.10.004

11. Evaluation of the extent of pollution of discharged oil field brine in the Bonny estuary, Niger Delta, Nigeria

Author:
C. O. Okogbue; O. U. Oyesanya; O. A. Anyiam; V. O. Omonona
Source:
Environmental earth sciences 2018 v.77 no.10 pp. 396
ISSN:
1866-6280
Subject:
ammonia; benzene; cluster analysis; dry season; estuaries; heavy metals; nickel; nitrates; nitrogen content; oil fields; petroleum; phenols; phosphates; physicochemical properties; pollution load; polycyclic aromatic hydrocarbons; river deltas; rivers; seawater; sediments; sulfates; toluene; xylene; Nigeria
Abstract:
... This is an assessment of the degree of effects of discharged produced water in river and sediments of the Bonny estuary, Niger Delta. It involved seasonal analyses of twenty-two (22) water and thirty-four (34) sediment samples from the Bonny River. The physicochemical properties (i.e., hydrocarbon content, heavy metals, and other inorganic constituents) of the water samples were examined, while th ...
DOI:
10.1007/s12665-018-7559-3

12. Surface water characteristics and trace metals level of the Bonny/New Calabar River Estuary, Niger Delta, Nigeria

Author:
M. C. Onojake; F. D. Sikoki; O. Omokheyeke; R. U. Akpiri
Source:
Applied water science 2017 v.7 no.2 pp. 951-959
ISSN:
2190-5487
Subject:
United States Environmental Protection Agency; World Health Organization; atomic absorption spectrometry; biochemical oxygen demand; cadmium; calcium; chromium; cobalt; copper; dissolved oxygen; dry season; estuaries; iron; lead; magnesium; monitoring; nickel; pH; potassium; public health; river deltas; rivers; salinity; seafoods; seasonal variation; sodium; surface water; temperature; total dissolved solids; turbidity; water quality; water quality standards; wet season; zinc; Nigeria
Abstract:
... Surface water samples from three stations in the Bonny/New Calabar River Estuary were analyzed for the physicochemical characteristics and trace metal level in 2011 and 2012, respectively. Results show pH ranged from 7.56 to 7.88 mg/L; conductivity, 33,489.00 to 33,592.00 µScm⁻¹; salinity, 15.33 to 15.50 ‰; turbidity, 4.35 to 6.65 NTU; total dissolved solids, 22111.00 to 23263.00 gm⁻³; dissolved o ...
DOI:
10.1007/s13201-015-0306-y

13. Polycyclic aromatic hydrocarbons in three commercially available fish species from the Bonny and Cross River estuaries in the Niger Delta, Nigeria

Author:
Imabong A. Effiong; Francisca I. Bassey; Chukwujindu M. A. Iwegbue; Okon D. Ekpa; Sunday A. Williams; Fehintola C. Oguntunde; Vincent N. Osabor; Bice S. Martincigh
Source:
Environmental monitoring and assessment 2016 v.188 no.9 pp. 508
ISSN:
0167-6369
Subject:
Chrysichthys nigrodigitatus; Cynoglossus senegalensis; Polydactylus; United States Environmental Protection Agency; benzo(a)pyrene; combustion; estuaries; fish; gas chromatography-mass spectrometry; hexane; methylene chloride; neoplasms; polycyclic aromatic hydrocarbons; risk; risk assessment; river deltas; rivers; ultrasonic treatment; Nigeria
Abstract:
... The concentrations and compositional patterns of the USEPA 16 polycyclic aromatic hydrocarbons were investigated in three commercially available fish species, Chrysichthys nigrodigitatus, Cynoglossus senegalensis and Polydactylus quadratifilis, from the Bonny and Cross River systems in the eastern Niger Delta of Nigeria. The objective of the study was to provide useful information on the levels an ...
DOI:
10.1007/s10661-016-5479-9

14. Potential effects on the marine environment of dredging of the Bonny channel in the Niger Delta

Author:
J. C. Agunwamba; K. C Onuoha; A. C Okoye
Source:
Environmental monitoring and assessment 2012 v.184 no.11 pp. 6613-6625
ISSN:
0167-6369
Subject:
biochemical oxygen demand; calcium; dissolved oxygen; dredged materials; dry season; environmental impact; heavy metals; nitrate nitrogen; nitrates; phosphates; physicochemical properties; potassium; risk reduction; sodium; total dissolved solids; total suspended solids; water quality; Niger
Abstract:
... This study is an assessment of the possible effects of the dredging project on the water quality of the surrounding environment. Water quality data for the Bonny offshore river were collected. The parameters assessed were temperature, dissolved oxygen (DO), pH, biochemical oxygen demand (BOD), total dissolved solids (TDS), total suspended solids (TSS), nitrogen as nitrate, and phosphate. The conce ...
DOI:
10.1007/s10661-011-2446-3
PubMed:
22146818

15. Nigerian bonny‐light crude oil induces alteration in testicular stress response proteins and caspase‐3 dependent apoptosis in albino wistar rats

Author:
Azubuike P. Ebokaiwe; Cynthia S. D'Cruz; R. Jubendradass; Judith S. Amala Rani; Premendu P. Mathur; Ebenezer O. Farombi
Source:
Environmental toxicology 2015 v.30 no.2 pp. 242-252
ISSN:
1520-4081
Subject:
transcription factor NF-kappa B; petroleum; river deltas; DNA damage; body weight; stress response; tumor necrosis factor-alpha; albino; adults; pollution; toxicity; rats; testes; oral administration; adverse effects; apoptosis; caspase-3; Nigeria
Abstract:
... In the past few decades, there has been much concern about the adverse health effects of environmental contaminants in general and Crude Oil in particular around the Niger Delta region of Nigeria where all the crude Oil exploration is taking place. Studies have shown the repro‐toxic effects of Bonny‐light crude oil (BLCO). However, the insight into the mechanisms of gonadal toxicity induced by BLC ...
DOI:
10.1002/tox.21902

16. Bioaccumulation of Trace Metals in Shellfish and Fish of Bonny River and Creeks around Okrika in Rivers State, Nigeria

Author:
A. C. Marcus; C. O. B. Okoye; C. N. Ibeto
Source:
Bulletin of environmental contamination and toxicology 2013 v.90 no.6 pp. 708-713
ISSN:
0007-4861
Subject:
Crassostrea rhizophorae; Mugil cephalus; bioaccumulation; cadmium; fish; lead; nickel; rivers; shellfish; streams; vanadium; New Zealand; Nigeria; South East Asia
Abstract:
... Lead, nickel, vanadium and cadmium were determined in fish and shellfish muscles, to assess contamination levels and identify bio-indicators. Vanadium was not detectable. Lead and cadmium were slightly above legal limits used in South East Asia, but lower than those of Australia and New Zealand. Higher contents of nickel, cadmium and lead in Pachymelania aurita and Crassostrea rhizophorae, lead in ...
DOI:
10.1007/s00128-013-0992-9
PubMed:
23568331

17. Induction of oxidative stress in liver and kidney of rats exposed to Nigerian bonny light crude oil

Author:
Isaac A. Adedara; Roy Teberen; Azubike P. Ebokaiwe; Theresa Ehwerhemuepha; Ebenezer O. Farombi
Source:
Environmental toxicology 2012 v.27 no.6 pp. 372-379
ISSN:
1520-4081
Subject:
bilirubin; catalase; creatinine; food chain; glutathione; histopathology; hydrogen peroxide; kidneys; lipid peroxidation; liver; mechanism of action; metabolites; necrosis; oral administration; oxidative stress; pollution; rats; superoxide dismutase; toxicity; transaminases; urea; Nigeria
Abstract:
... The local population of Niger‐Delta in the Southern part of Nigeria have used bonny light crude oil (BLCO) as a remedy for various ailments and are exposed to some extent to this widespread environmental contaminant or its metabolites through the food chain. BLCO's hepatorenal toxicity was studied using oxidative stress indices to elucidate the precise nature and mechanism of action. BLCO was oral ...
DOI:
10.1002/tox.20660
PubMed:
21308946

18. Nigerian Bonny Light Crude Oil Disrupts Antioxidant Systems in Testes and Sperm of Rats

Author:
Farombi, Ebenezer O.; Adedara, Isaac A.; Ebokaiwe, Azubike P.; Teberen, Roy; Ehwerhemuepha, Theresa
Source:
Archives of environmental contamination and toxicology 2010 v.59 no.1 pp. 166-174
ISSN:
0090-4341
Subject:
dietary exposure; epithelium; oxidative stress; petroleum; glutathione; malondialdehyde; glutathione transferase; hydrogen peroxide; spermatozoa; glucose 6-phosphate; testes; NADP-glucose-6-phosphate dehydrogenase; medicine; superoxide dismutase; sperm motility; rats; antioxidant activity; histopathology; adverse effects; viability; catalase
Abstract:
... Nigerian Bonny light crude oil (BLCO) is commonly used by the local population in folklore medicine for the management of various forms of gastrointestinal problems and male reproductive capacity. The study investigated the effects of BLCO on the antioxidant systems of the testes and epidydimal sperm in rats by oral exposure to 0, 200, 400 and 800 mg/kg BLCO for 7 days. In testes and sperm, BLCO t ...
DOI:
10.1007/s00244-009-9443-3
PubMed:
20037784

19. Aspects of Air Quality Status of Bonny Island, Nigeria Attributed to an Lng Plant

Author:
Precious N. Ede; David O. Edokpa; Oluleye Ayodeji
Source:
Energy & environment v.22 no.7 pp. 891-909
ISSN:
2048-4070
Subject:
afforestation; air quality; carbon dioxide; carbon markets; carbon monoxide; emissions; human settlements; industrialization; models; natural gas; nitrogen oxides; particulates; pollutants; pollution control; river deltas; statistical analysis; sulfur oxides; wind direction; wind speed; Nigeria
Abstract:
... The Bonny Island axis of the Niger Delta, Nigeria, is one of the most industrialized belts of Nigeria. Among the significant industries in the locality is the Nigerian natural gas liquefying plants. The plant complex generates emissions which are propagated by meteorological agents. An atmospheric dispersion model was used to model the emissions using a computer programme. A statistical analysis o ...
DOI:
10.1260/0958-305X.22.7.891

20. Aspects of community ecology of amphibians and reptiles at Bonny Island (Nigeria), an area of priority relevance for petrochemical industry

Author:
Akani, Godfrey C.; Luiselli, Luca M.
Source:
African journal of ecology 2010 v.48 no.4 pp. 939-948
ISSN:
0141-6707
Subject:
Agama; body temperature; community structure; dry season; frogs; industry; microhabitats; reptiles; toads; wet season; Niger; Nigeria
Abstract:
... Finima Nature Park, situated in Bonny Island (Niger Delta, Nigeria), is a protected forested area placed within one of the most industrially developed (and environmentally polluted) regions of the whole African continent. Amphibian and reptile community composition in relation to season and microhabitat characteristics was studied, by a combination of field techniques, during the wet and dry seaso ...
DOI:
10.1111/j.1365-2028.2009.01195.x

21. Sediment Quality Status of Two Creeks in the Upper Bonny Estuary, Niger Delta, in Relation to Urban/Industrial Activities

Author:
Daka, Erema R.; Moslen, Miebaka; Ekeh, Calista A.; Ekweozor, I. K. E.
Source:
Bulletin of environmental contamination and toxicology 2007 v.78 no.6 pp. 515-521
ISSN:
0007-4861
Subject:
anthropogenic activities; cadmium; carbon; chromium; copper; estuaries; hydrocarbons; iron; lead; nitrates; phosphates; principal component analysis; river deltas; sediments; streams; zinc; Nigeria
Abstract:
... Two creeks (Azuabie and Obufe) in the upper Bonny Estuary, Nigeria were studied to determine how industrial and other anthropogenic activities have influenced their relative sediment qualities. Total organic carbon, total hydrocarbons, zinc, lead, cadmium and iron were significantly higher in the Azuabie creek, while phosphate, nitrate, copper and chromium did not show significant differences betw ...
DOI:
10.1007/s00128-007-9151-5
PubMed:
17487433