Effect of harvest stage and drying methods on germination and seed-borne fungi of maize (Zea mays L.) in South West Nigeria

Germination of seed and infection by seed-borne fungi of two maize varieties DMRLSR-W and DMRLSRY as affected by stage of harvest and method of drying were studied in the growing seasons of year 2002 and 2003 at the Institute of Agricultural Research and Training, Moor Plantation, Ibadan, Nigeria. The experiment was a split-plot arranged in a randomized complete block design with four replications. Ears were harvested at 30, 35, 40, and 45 days after tasselling (DAT). Extracted seeds were dried to 13-14% moisture content (i) in shade, (ii) in sun, and (iii) artificially at 45oC in a Thermax batch type seed drier. “Initial” and “final” germination tests were conducted immediately after harvest and drying, respectively. Significant higher percentage germination was associated with seeds from cobsharvested 35 DAT which were sun dried. The highest 100-seed weight was recorded in seeds from cobs harvested 45 DAT irrespective of drying method. Associated fungi were isolated by plating seeds on potato dextrose agar. Results indicated seeds from ears harvested at 30 and 35 DAT irrespective of drying method were not infected with Fusarium moniliforme, Fusarium graminearium, Botryodiplodia theobromae and Drechslera maydis. However, seed germination was significantly lower for seeds fromears harvested at 30 DAT. Aspergillus sp. were isolated from all the seeds irrespective of stage of harvest and drying method. Penicillium sp. was not isolated from any of the seeds dried artificially. Significant higher percentage germination was associated with seeds from cobs harvested 35 DAT which were sun dried. Maximum 100-seed weight was recorded in seeds from ears harvested 45 DAT irrespective of drying method

Effects of application of phosphorus fertilizer on brown blotch disease of cowpea

A field experiment was conducted to investigate the effects of level of phosphorus application on brown blotch disease of cowpea during the planting seasons of 2001, 2002 and 2003. Application of phosphorus from Single Super Phosphate at 30, 60, 90, and 120 kg P2O5/ha significantly increased the number of petioles, pods, nodules, seed/pod leaf area and yield. The higher the level of application of phosphorus the higher values of all the parameters. Disease incidence and severity of brown blotch were significantly reduced at higher levels of phosphorus (90 and 120 kg/ha) irrespective of the method of application. Moreover, there were also increases in the grain yield of cowpeaKeywords: Cowpea, disease phosphorus, levels, method

Uncommon complications of Otitis media in a tertiary center: A Case Series

Background: The aim is to report cases of unusual and infrequent complication of otitis media in North-central Nigeria, as well as evaluate their outcome. We present 7 case reports of patients with unusual complications from otitis media in our setting.Case 1: A fifteen year old Yoruba girl presented at the Accident and emergency of our hospital with a 2 week history of left sided ear ache, 10 day history of left sided ear discharge and 3 day history of jaw and neck stiffness. There was a positive history of use of ‘Turari’ locally prepared perfume and application of an ear drop from a local chemist. Caregiver said patient was fully immunized. Examination revealed a young girl, conscious and alert, not pale, anicteric with stiff neck, positive and rigid joints on movement.Case 2: An 8 year old Yoruba girl presented first to the eye clinic with 2 days history of swelling of the right eye, associated pain, reduction in vision and eyelid swelling without eye discharge or itch. There was a of purulent ear discharge 8 days prior to eye symptoms. No history of trauma was obtained. Examination revealed proptosis with zygomatic abscess extending to the post-auricular. She had incision and drainage with systemic and topical antibiotics for ear dressing. Outcome was uneventful.Conclusion: The unusual complication of otitis media still occurs in our environment usually due to late presentation and contamination of wound. Prevention is still the best option.  Keywords: Otitis Media, Complications, Otogenic Tetanus, Ophthalmic, Proptosi

Clinico-pathological pattern of nasopharyngeal carcinoma in Ilorin, Nigeria

Nasopharyngeal carcinoma is an uncommon tumour in Nigeria but the burden of the disease in terms of morbidity and mortality is very high.The aim of the study was to document the clinic-pathological characteristics of nasopharyngeal carcinoma in Ilorin, North central Nigeria.This was a retrospective review of all patients seen in ENT department, University of Ilorin Teaching Hospital with the diagnosis of nasopharyngeal carcinoma between January 1st 1999 and December 31st,2008. The patient's biodata, clinical presentation and histopathological findings are presented. The histopathological diagnosis was in accordance with the 1991WHOclassification. A total of 30 patients with histologically confirmed nasopharyngeal carcinoma seen during the study period accounted for 2% of the total cancers recorded in Ilorin cancer registry. There were 20 males and 10 females with a mean age of 48.7 ± 15.9 years. The commonest presenting complaint was cervical lymphadenopathy in 96.7% of patients followed by epistaxis (66.7%) and hearing loss (66.7%). Identifiable riskfactors included regular intake of ungutted salted smoked fish (76.7%) and tobacco use (23.3%) with some having both risk factors. Histologically, undifferentiated carcinoma was the commonest (70%) followed by welldifferentiated keratinizing squamous cell carcinoma (20%) and differentiated nonkeratinizing squamous cell carcinoma (10%).Undifferentiated carcinoma was the commonest type of nasopharyngeal carcinoma reported from this study especially among males in the 4th and 5th decades of life. Identifiable risk factors included consumption of ungutted salted smoked fish with tobaccon usage. Early diagnosis with effective referral system and easy access to radiotherapy would improve the survival outcome in patients with the disease

Intranasal Endoscopic Repair of Bilateral Choanal Atresia in a Male Newborn with Crouzon's Syndrome

No Abstract

Foreign Bodies in the Upper Aerodigestive Tract of Nigerian Children

Aim/Background This is an audit of number, nature, sites of impaction and methods of removals and treatment outcome of upper aero-digestive foreign bodies among children in an urban University hospital in Nigeria. Patients and Methods This is an 8year retrospective review of foreign body in upper aero-dgestive tract of children (January 2001 to December 2007) was conducted at the ENT department of the University of Ilorin Teaching Hospital, Ilorin, Nigeria . Case notes of the patients were retrieved and the following were data extracted: demographic, clinical, operative and outpatient visits outcome. Results 81 children aged 9months to 16years were seen (mean 4.28, SD 2.95) with 49 males and 32 females and a male: female ratio of 1.5: 1.0.The commonest age group was 9months to 4years (76.5%). Most common of impaction sites were nasal cavity in 31 cases (38.3%), oesophagus in 23 cases (28.4%), oropharynx in 16 (19.8%) and larynx in 6 (7.4%)).The commonest FBs was coins in 33 (40.7 %) in the oesophagus and 37.5% of pharyngeal FBs .Inanimate FBs in the nose constituted 31(38.3%) [Non vegetative 27(87.1%), vegetative 4(12.9 %)]. Fish bones were seen in 11 cases (13.6%) [6 in the larynx and 5 around the tonsillar fauces] and miscellaneous objects in 6 cases. Conclusion Upper aero-digestive foreign bodies are common especially among the under fours', commonest sites being the nose and pharyngooesophageal region with coins and inanimate FBs constituting about four-fifth. There is the need for parental health education on object placements, and a high index of suspicion among practitioners to facilitate early referral and avoid preventable complications

Genotoxicity assessment of a pharmaceutical effluent using four bioassays

Pharmaceutical industries are among the major contributors to industrial waste. Their effluents when wrongly handled and disposed of endanger both human and environmental health. In this study, we investigated the potential genotoxicity of a pharmaceutical effluent, by using the Allium cepa, mouse- sperm morphology, bone marrow chromosome aberration (CA) and micronucleus (MN) assays. Some of the physico-chemical properties of the effluent were also determined. The A. cepa and the animal assays were respectively carried out at concentrations of 0.5, 1, 2.5, 5 and 10%; and 1, 5, 10, 25 and 50% of the effluent. There was a statistically different (p < 0.05), concentration-dependent inhibition of onion root growth and mitotic index, and induction of chromosomal aberrations in the onion and mouse CA test. Assessment of sperm shape showed that the fraction of the sperm that was abnormal in shape was significantly (p < 0.05) greater than the negative control value. MN analysis showed a dose-dependent induction of micronucleated polychromatic erythrocytes across the treatment groups. These observations were provoked by the toxic and genotoxic constituents present in test samples. The tested pharmaceutical effluent is a potentially genotoxic agent and germ cell mutagen, and may induce adverse health effects in exposed individuals

Day case adenoidectomy: Is it safe?

No Abstract

A survey of facial nerve dessection techniques in benign parotid surgery among maxillofacial and ear, nose, and throat surgeons in Nigeria

No Abstract