John Adama - Academia.edu (original) (raw)

Papers by John Adama

Research paper thumbnail of Natal tooth and cultural impact on its management in a tropical neonatal unit: A Case Report

The Nigerian postgraduate medical journal, Sep 1, 2013

The incidence of natal tooth is uncommon and its management could be fraught with challenges. A 3... more The incidence of natal tooth is uncommon and its management could be fraught with challenges. A 3 day old female presented with features of sepsis and a natal tooth. Treatment for sepsis was permitted and successfully instituted but definitive management of the natal tooth was deferred, for cultural reasons, by the parents. The case documents the occurrence of natal tooth and highlights the impact of cultural beliefs on management of some medical conditions. It underscores the need to develop the relationship between orthodox medical care and cultural beliefs, in susceptible communities, with a view to achieving optimal health care delivery.

Research paper thumbnail of Burkitt's lymphoma presenting as obstructive jaundice

Annals of Tropical Paediatrics, 2004

A 12-year-old boy presented with a 5-month history of yellowness of the eyes, progressive painles... more A 12-year-old boy presented with a 5-month history of yellowness of the eyes, progressive painless abdominal swelling and weight loss. Physical examination revealed a grossly wasted child with marked jaundice and non-tender hepatomegaly. Liver function tests and abdominal ultrasound suggested obstructive liver disease. Tissue biopsy at laparotomy showed histological ndings consistent with Burkitt's lymphoma. He was commenced on cytotoxic chemotherapy and, after two courses, the jaundice disappeared and he remained well. Although antemortem presentation of Burkitt's lymphoma as hepatic disease is rare, this condition should be included in the diVerential diagnosis of a child with obstructive jaundice.

Research paper thumbnail of Pattern of neurological disorder presenting at a paediatric neurology clinic in Nigeria

Annals of African Medicine, 2007

Background: Neurological diseases account for more than 20% of the world's disease burden with ma... more Background: Neurological diseases account for more than 20% of the world's disease burden with majority of affected people living in Africa. However there is a paucity of literature on neurological disease in Africa. Methods: A retrospective review of 114 children with neurological problem seen at a paediatric neurological clinic in a 2-year. Results: Delayed developmental milestone, convulsion and inability to walk were the 3 most common reasons for referral to our Paediatric neurology clinic. Cerebral palsy (55.3%), Seizure disorder (26.3%) and postmeningitic complications (6.2%) were the common neurological disorder seen at our neurology clinic. The Paediatric outpatient department (POPD) of our hospital was the main source of referral for most cases (83.2%) and 71.1% of all patients resides within Zaria metropolis. The default rate from follow-up was higher among children with cerebral palsy compared to children with seizure disorder (58.7% vs. 13.3%, P< 0.001). Conclusion: Lack of adequate facilities for proper rehabilitation of children with cerebral palsy could have been the main reason for the high default rate from follow-up.

Research paper thumbnail of Predisposing Factors to Neonatal Septicaemia at Ahmadu Bello University Teaching Hospital, Zaria Nigeria

Nigerian Postgraduate Medical Journal

The study aimed at identifying the risk factors for neonatal septicaemia in Zaria. Consecutive ne... more The study aimed at identifying the risk factors for neonatal septicaemia in Zaria. Consecutive newborns admitted into the Special Care Baby Unit of Ahmadu Bello University Teaching Hospital, Zaria with the presumptive test diagnosis of neonatal septicaemia between 25 May, 2004 and 31 May, 2005 were studied. History of events in the antenatal and neonatal periods was obtained and physical examination was done. Blood, urine, cerebrospinal fluid and swabs of body discharges were taken for culture and sensitivity studies. The data were analysed using Epi Info version 6 software. Associations were tested using Chi square, with Yates correction, or Fisher&#39;s exact tests where appropriate, while statistical significance was set at p &lt; 0.05. A total of 211 neonates, consisting of 69 in-born and 142 out-born infants were studied. There were 122 (57.8%) males and 89 (42.2%) females; giving a male: female ratio of 1.4:1. Seventy-five (35.5%) of the newborns had bacteriologically proven septicaemia consisting of 54 (38.0%) of the outborn and 21 (30.4%) of the inborn babies (p = 0.3535); 42 males and 33 females (p = 0.8011). The male: female ratio of newborns with culture-proven septicaemia was 1.2:1. The predisposing factors that were associated with culture-proven septicaemia were lack of antenatal care (p = 0.0234), prolonged rupture of membranes (p = 0.0085), prolonged labour (p = 0.0032), preterm delivery (p = 0.0125) and perinatal asphyxia (p = 0.0078). The risk factors in neonates with septicaemia in this study emphasise the need for timely improvement in the implementation of existing public health strategies.

Research paper thumbnail of Effects of natural antioxidant extract supplementation on the growth performance and meat quality of broiler chickens

Journal of Agricultural Sciences, Belgrade, 2020

The study examined the effect of dietary antioxidant supplementation on the performance and meat ... more The study examined the effect of dietary antioxidant supplementation on the performance and meat quality of broiler chickens. Namely, 300 one-day-old Arbor Acres broiler chicks were fed a starter diet from 1 to 4 weeks and a finisher diet for the last 4 weeks. Birds were randomly assigned to treatments based on antioxidant supplementation in drinking water at 0.02% butylated hydroxyanisole (BHA), ordinary water (OW), 0.02% sweet orange peel extract (SOPE), 0.02% shaddock peel extract (SHPE) and 0.02% lemon peel extract (LMPE) per litre of water in a completely randomized design experiment. Feed intake and body weight gain were recorded on a weekly basis. Three birds were selected in each treatment and slaughtered for meat quality determination. BHA and LMPE treatments had the best weight gain and feed conversion efficiency at the significance level (p<0.05). There were significant differences (p<0.05) in the shear force (force peak and yield) in the dietary antioxidants fed to...

Research paper thumbnail of Disruption of estrus and conception in the acute phase of Fasciola gigantica infections in Yankasa ewes

Journal of Veterinary Medicine and Animal Health, Aug 31, 2013

The effect of the hepatic migratory phase of Fasciola gigantica infections on estrus response to ... more The effect of the hepatic migratory phase of Fasciola gigantica infections on estrus response to synchronization, conception rates, serum enzyme and biochemical changes in Yankasa ewes was investigated. Twelve adult Yankasa ewes were randomly assigned to one of two groups of 6 animals each. The ewes in Group 1 were each infected with 1,200 metacercaria of F. gigantica each while Group 2 served as non infected controls for the study. The ewes in both groups were then synchronized for estrus at 7 weeks post infection (WPI), and intact rams were introduced for heat detection and breeding. Pregnancy was confirmed by progesterone levels and non-return to estrus 21 days post breeding. Estrus response was 66.6 and 100% in infected and controls, respectively, but all infected animals returned to estrus by 42 days post breeding, indicating conception failure or an early embryonic death. Pathophysiological signs included anorexia, progressive anemia, emaciation and significant hypoproteinemia. Hepatic dysfunction was indicated by the significant increases in liver enzymes; aspartate amino transferase, alanine amino transferase and alkaline phosphatase levels in infected ewes and at post mortem hepatic fibrosis of the liver with intra-hepatic hemorrhage was observed. It is concluded that fasciolosis has an adverse effect on conception and establishment of the fetus in the acute migratory phase.

Research paper thumbnail of Febrile seizures in Kaduna, north western Nigeria

Nigerian Medical Journal, 2012

There are two types of febrile seizures: the simple and complex types. 1,3,8 The simple type is c... more There are two types of febrile seizures: the simple and complex types. 1,3,8 The simple type is characterized by an episode of generalized tonic-clonic seizure lasting less than 15 min in 24 h while in the complex type the convulsions are multiple, lasting more than 15 min and associated with focal findings after the ictal period. While the majority of febrile seizures are simple (70-75%), 9-35% of them are complex. 3,8 A positive family history for febrile seizures can be elicited in 25-40% of patients with febrile seizures. 8 Studies also show a high concordance rate in monozygotic rather in dizygotic twins. 8 The febrile seizure gene has been mapped to chromosome 19p and 8q13-21. 1 In addition to the positive history in a first or second degree relative, occurrence of febrile seizure has been associated with: human herpes virus-6 infection, 9 influenza viral infection 10 and iron deficiency anaemia. 11 The overall recurrence rate is 30%. 3,8 Predictors of recurrence include: complex seizures, positive family history, onset at less 12 months and temperature <40° C. 1,3,8 Management is achieved through controlling fever by tepid sponging or giving antipyretics, aborting ongoing convulsion with an anticonvulsant and treatment of the underlying cause of fever. Prognosis is usually good even

Research paper thumbnail of Cusp energetic ions: A bow shock source

Geophysical Research Letters, 1998

Recent interpretations of cusp energetic ions observed by the POLAR spacecraft have suggested a n... more Recent interpretations of cusp energetic ions observed by the POLAR spacecraft have suggested a new energization process in the cusp [Chen et al., 1997; 1998]. Simultaneous enhancement of H +, He +2, and 0 >+2 fluxes indicates that they are of solar wind origin. In the present study, we examine H + and He +2 energy spectra from 20 eV to several 100 keV measured by the Hydra, Toroidal Imaging Mass-Angle Spectrograph (TIMAS), and Charge and Mass Magnetospheric Ion Composition Experiment (CAM-MICE) on POLAR. The combined spectrum for each species is shown to be continuous with a thermal distribution below 10 keV/e and an energetic component above 20 keV/e. Energetic ions with comparable fluxes and a similar spectral shape are commonly observed downstream from the Earth's quasi-parallel (Qll) bow shock. In addition to the similarity in the ion spectra, electric and magnetic field noise and turbulence detected in the cusp by the Plasma Wave Instrument (PWI) and Magnetic Field Experiment (MFE) onboard POLAR are similar to the previously reported observations at the bow shock. The waves appear to be coincidental to the cusp energetic ions rather than causal. We suggest that these ions are not accelerated locally in the cusp. Rather, they are accelerated at the QII bow shock and enter the cusp along open magnetic field lines connecting both regions. component, have been long understood to be directly from the solar wind. The energetic particle data from the POLAR spacecraft recently called into question the origin of high-energy plasmas in the cusp. These cusp energetic particles (CEPs) first documented in the CAMMICE and CEP-PAD data have energies above the typical solar wind energies up to hundreds of keV/e [Chen et al., 1997; 1998]. Ion composition measurements show that they are of solar wind origin. Because energetic particles were not observed in the

Research paper thumbnail of Natal tooth and cultural impact on its management in a tropical neonatal unit: A Case Report

The Nigerian postgraduate medical journal, Sep 1, 2013

The incidence of natal tooth is uncommon and its management could be fraught with challenges. A 3... more The incidence of natal tooth is uncommon and its management could be fraught with challenges. A 3 day old female presented with features of sepsis and a natal tooth. Treatment for sepsis was permitted and successfully instituted but definitive management of the natal tooth was deferred, for cultural reasons, by the parents. The case documents the occurrence of natal tooth and highlights the impact of cultural beliefs on management of some medical conditions. It underscores the need to develop the relationship between orthodox medical care and cultural beliefs, in susceptible communities, with a view to achieving optimal health care delivery.

Research paper thumbnail of Burkitt's lymphoma presenting as obstructive jaundice

Annals of Tropical Paediatrics, 2004

A 12-year-old boy presented with a 5-month history of yellowness of the eyes, progressive painles... more A 12-year-old boy presented with a 5-month history of yellowness of the eyes, progressive painless abdominal swelling and weight loss. Physical examination revealed a grossly wasted child with marked jaundice and non-tender hepatomegaly. Liver function tests and abdominal ultrasound suggested obstructive liver disease. Tissue biopsy at laparotomy showed histological ndings consistent with Burkitt's lymphoma. He was commenced on cytotoxic chemotherapy and, after two courses, the jaundice disappeared and he remained well. Although antemortem presentation of Burkitt's lymphoma as hepatic disease is rare, this condition should be included in the diVerential diagnosis of a child with obstructive jaundice.

Research paper thumbnail of Pattern of neurological disorder presenting at a paediatric neurology clinic in Nigeria

Annals of African Medicine, 2007

Background: Neurological diseases account for more than 20% of the world's disease burden with ma... more Background: Neurological diseases account for more than 20% of the world's disease burden with majority of affected people living in Africa. However there is a paucity of literature on neurological disease in Africa. Methods: A retrospective review of 114 children with neurological problem seen at a paediatric neurological clinic in a 2-year. Results: Delayed developmental milestone, convulsion and inability to walk were the 3 most common reasons for referral to our Paediatric neurology clinic. Cerebral palsy (55.3%), Seizure disorder (26.3%) and postmeningitic complications (6.2%) were the common neurological disorder seen at our neurology clinic. The Paediatric outpatient department (POPD) of our hospital was the main source of referral for most cases (83.2%) and 71.1% of all patients resides within Zaria metropolis. The default rate from follow-up was higher among children with cerebral palsy compared to children with seizure disorder (58.7% vs. 13.3%, P< 0.001). Conclusion: Lack of adequate facilities for proper rehabilitation of children with cerebral palsy could have been the main reason for the high default rate from follow-up.

Research paper thumbnail of Predisposing Factors to Neonatal Septicaemia at Ahmadu Bello University Teaching Hospital, Zaria Nigeria

Nigerian Postgraduate Medical Journal

The study aimed at identifying the risk factors for neonatal septicaemia in Zaria. Consecutive ne... more The study aimed at identifying the risk factors for neonatal septicaemia in Zaria. Consecutive newborns admitted into the Special Care Baby Unit of Ahmadu Bello University Teaching Hospital, Zaria with the presumptive test diagnosis of neonatal septicaemia between 25 May, 2004 and 31 May, 2005 were studied. History of events in the antenatal and neonatal periods was obtained and physical examination was done. Blood, urine, cerebrospinal fluid and swabs of body discharges were taken for culture and sensitivity studies. The data were analysed using Epi Info version 6 software. Associations were tested using Chi square, with Yates correction, or Fisher&#39;s exact tests where appropriate, while statistical significance was set at p &lt; 0.05. A total of 211 neonates, consisting of 69 in-born and 142 out-born infants were studied. There were 122 (57.8%) males and 89 (42.2%) females; giving a male: female ratio of 1.4:1. Seventy-five (35.5%) of the newborns had bacteriologically proven septicaemia consisting of 54 (38.0%) of the outborn and 21 (30.4%) of the inborn babies (p = 0.3535); 42 males and 33 females (p = 0.8011). The male: female ratio of newborns with culture-proven septicaemia was 1.2:1. The predisposing factors that were associated with culture-proven septicaemia were lack of antenatal care (p = 0.0234), prolonged rupture of membranes (p = 0.0085), prolonged labour (p = 0.0032), preterm delivery (p = 0.0125) and perinatal asphyxia (p = 0.0078). The risk factors in neonates with septicaemia in this study emphasise the need for timely improvement in the implementation of existing public health strategies.

Research paper thumbnail of Effects of natural antioxidant extract supplementation on the growth performance and meat quality of broiler chickens

Journal of Agricultural Sciences, Belgrade, 2020

The study examined the effect of dietary antioxidant supplementation on the performance and meat ... more The study examined the effect of dietary antioxidant supplementation on the performance and meat quality of broiler chickens. Namely, 300 one-day-old Arbor Acres broiler chicks were fed a starter diet from 1 to 4 weeks and a finisher diet for the last 4 weeks. Birds were randomly assigned to treatments based on antioxidant supplementation in drinking water at 0.02% butylated hydroxyanisole (BHA), ordinary water (OW), 0.02% sweet orange peel extract (SOPE), 0.02% shaddock peel extract (SHPE) and 0.02% lemon peel extract (LMPE) per litre of water in a completely randomized design experiment. Feed intake and body weight gain were recorded on a weekly basis. Three birds were selected in each treatment and slaughtered for meat quality determination. BHA and LMPE treatments had the best weight gain and feed conversion efficiency at the significance level (p<0.05). There were significant differences (p<0.05) in the shear force (force peak and yield) in the dietary antioxidants fed to...

Research paper thumbnail of Disruption of estrus and conception in the acute phase of Fasciola gigantica infections in Yankasa ewes

Journal of Veterinary Medicine and Animal Health, Aug 31, 2013

The effect of the hepatic migratory phase of Fasciola gigantica infections on estrus response to ... more The effect of the hepatic migratory phase of Fasciola gigantica infections on estrus response to synchronization, conception rates, serum enzyme and biochemical changes in Yankasa ewes was investigated. Twelve adult Yankasa ewes were randomly assigned to one of two groups of 6 animals each. The ewes in Group 1 were each infected with 1,200 metacercaria of F. gigantica each while Group 2 served as non infected controls for the study. The ewes in both groups were then synchronized for estrus at 7 weeks post infection (WPI), and intact rams were introduced for heat detection and breeding. Pregnancy was confirmed by progesterone levels and non-return to estrus 21 days post breeding. Estrus response was 66.6 and 100% in infected and controls, respectively, but all infected animals returned to estrus by 42 days post breeding, indicating conception failure or an early embryonic death. Pathophysiological signs included anorexia, progressive anemia, emaciation and significant hypoproteinemia. Hepatic dysfunction was indicated by the significant increases in liver enzymes; aspartate amino transferase, alanine amino transferase and alkaline phosphatase levels in infected ewes and at post mortem hepatic fibrosis of the liver with intra-hepatic hemorrhage was observed. It is concluded that fasciolosis has an adverse effect on conception and establishment of the fetus in the acute migratory phase.

Research paper thumbnail of Febrile seizures in Kaduna, north western Nigeria

Nigerian Medical Journal, 2012

There are two types of febrile seizures: the simple and complex types. 1,3,8 The simple type is c... more There are two types of febrile seizures: the simple and complex types. 1,3,8 The simple type is characterized by an episode of generalized tonic-clonic seizure lasting less than 15 min in 24 h while in the complex type the convulsions are multiple, lasting more than 15 min and associated with focal findings after the ictal period. While the majority of febrile seizures are simple (70-75%), 9-35% of them are complex. 3,8 A positive family history for febrile seizures can be elicited in 25-40% of patients with febrile seizures. 8 Studies also show a high concordance rate in monozygotic rather in dizygotic twins. 8 The febrile seizure gene has been mapped to chromosome 19p and 8q13-21. 1 In addition to the positive history in a first or second degree relative, occurrence of febrile seizure has been associated with: human herpes virus-6 infection, 9 influenza viral infection 10 and iron deficiency anaemia. 11 The overall recurrence rate is 30%. 3,8 Predictors of recurrence include: complex seizures, positive family history, onset at less 12 months and temperature <40° C. 1,3,8 Management is achieved through controlling fever by tepid sponging or giving antipyretics, aborting ongoing convulsion with an anticonvulsant and treatment of the underlying cause of fever. Prognosis is usually good even

Research paper thumbnail of Cusp energetic ions: A bow shock source

Geophysical Research Letters, 1998

Recent interpretations of cusp energetic ions observed by the POLAR spacecraft have suggested a n... more Recent interpretations of cusp energetic ions observed by the POLAR spacecraft have suggested a new energization process in the cusp [Chen et al., 1997; 1998]. Simultaneous enhancement of H +, He +2, and 0 >+2 fluxes indicates that they are of solar wind origin. In the present study, we examine H + and He +2 energy spectra from 20 eV to several 100 keV measured by the Hydra, Toroidal Imaging Mass-Angle Spectrograph (TIMAS), and Charge and Mass Magnetospheric Ion Composition Experiment (CAM-MICE) on POLAR. The combined spectrum for each species is shown to be continuous with a thermal distribution below 10 keV/e and an energetic component above 20 keV/e. Energetic ions with comparable fluxes and a similar spectral shape are commonly observed downstream from the Earth's quasi-parallel (Qll) bow shock. In addition to the similarity in the ion spectra, electric and magnetic field noise and turbulence detected in the cusp by the Plasma Wave Instrument (PWI) and Magnetic Field Experiment (MFE) onboard POLAR are similar to the previously reported observations at the bow shock. The waves appear to be coincidental to the cusp energetic ions rather than causal. We suggest that these ions are not accelerated locally in the cusp. Rather, they are accelerated at the QII bow shock and enter the cusp along open magnetic field lines connecting both regions. component, have been long understood to be directly from the solar wind. The energetic particle data from the POLAR spacecraft recently called into question the origin of high-energy plasmas in the cusp. These cusp energetic particles (CEPs) first documented in the CAMMICE and CEP-PAD data have energies above the typical solar wind energies up to hundreds of keV/e [Chen et al., 1997; 1998]. Ion composition measurements show that they are of solar wind origin. Because energetic particles were not observed in the