Selection of Mass Transfer Models for Competitive Adsorption of Antibiotics Mixture from Aqueous Solution on Delonix regia Pod Activated Carbon

The selection of suitable mass transfer models that fit the adsorption of a mixture of antibiotics in aqueous solution onto activated carbon derived from Delonix Regia Pods (DRPs) was examined in this study. The ripe DRPs were cleaned, activated with KOH and then carbonised at 350 °C. The surface chemistry of the raw and the modified DRPs were characterised using Fourier Transform Infrared (FTIR), before being subjected to batch adsorption of a mixture of Amoxicillin (AMO), Tetracycline (TETRA) and Ampicillin (AMP)  under the effect of time (0-240 mins), and concentration (20-100 mg/l). The adsorption diffusion mechanisms of the process were analyzed. The spectra of the raw and modified DRP indicate the existence of hydroxyl groups alkanes, unconjugated ketone, carbonyl, and ester groups.  McKay has the highest  (0.9445) for the mass transfer diffusion model. This indicates that the adsorption rate of the selected antibiotics in the wastewater is regulated and monitored by the internal mass transport processes in accordance with a pore diffusion mechanism

Management of late-preterm and term infants with hyperbilirubinaemia in resource-constrained settings.

Hyperbilirubinaemia is a ubiquitous transitional morbidity in the vast majority of newborns and a leading cause of hospitalisation in the first week of life worldwide. While timely and effective phototherapy and exchange transfusion are well proven treatments for severe neonatal hyperbilirubinaemia, inappropriate or ineffective treatment of hyperbilirubinaemia, at secondary and tertiary hospitals, still prevails in many poorly-resourced countries accounting for a disproportionately high burden of bilirubin-induced mortality and long-term morbidity. As part of the efforts to curtail the widely reported risks of frequent but avoidable bilirubin-induced neurologic dysfunction (acute bilirubin encephalopathy (ABE) and kernicterus) in low and middle-income countries (LMICs) with significant resource constraints, this article presents a practical framework for the management of late-preterm and term infants (≥ 35 weeks of gestation) with clinically significant hyperbilirubinaemia in these countries particularly where local practice guidelines are lacking. Standard and validated protocols were followed in adapting available evidence-based national guidelines on the management of hyperbilirubinaemia through a collaboration among clinicians and experts on newborn jaundice from different world regions. Tasks and resources required for the comprehensive management of infants with or at risk of severe hyperbilirubinaemia at all levels of healthcare delivery are proposed, covering primary prevention, early detection, diagnosis, monitoring, treatment, and follow-up. Additionally, actionable treatment or referral levels for phototherapy and exchange transfusion are proposed within the context of several confounding factors such as widespread exclusive breastfeeding, infections, blood group incompatibilities and G6PD deficiency, which place infants at high risk of severe hyperbilirubinaemia and bilirubin-induced neurologic dysfunction in LMICs, as well as the limited facilities for clinical investigations and inconsistent functionality of available phototherapy devices. The need to adjust these levels as appropriate depending on the available facilities in each clinical setting and the risk profile of the infant is emphasised with a view to avoiding over-treatment or under-treatment. These recommendations should serve as a valuable reference material for health workers, guide the development of contextually-relevant national guidelines in each LMIC, as well as facilitate effective advocacy and mobilisation of requisite resources for the optimal care of infants with hyperbilirubinaemia at all levels

Predisposing factors and outcome of uterine rupture in Jos, North-central Nigeria

Background: Uterine rupture has continued to be an obstetric catastrophe with tragic maternal and foetal outcomes particularly in Nigeria.Methods: an institutional, cross sectional retrospective study was carried out at Jos University Teaching Hospital, North-Central Nigeria. Case files of mothers with uterine rupture managed at the hospital from 1 January 2011 to 31 December 2019 were retrieved and included in the study. Data extracted from case files included maternal age, parity, gestational age, booking status, presence of uterine scar, obstetric interventions prior to rupture, site of rupture, type of surgery, units of blood transfused, intensive care unit admission and duration of hospital stay and maternal or foetal death.Results: the incidence of uterine rupture was 1 in 497 deliveries (0.2%). The mean age of the patients was 30.1±5.1years. About 75% of the patients were para 1-4. Seventeen (70.8%) patients were unbooked while fourteen (58.3%) had unscarred uterine rupture. Eight out of 14(57.1%) patients with unscarred uterus had uterotonics for induction or augmentation of labour. Fourteen (58.3%) patients had rupture involving anterior lower uterine segment. Over half of the patients had uterine repair only (58.3%), 29.2% had uterine repair with bilateral tubal ligation while 12.5% had subtotal hysterectomy. Twenty-two (91.7%) required blood transfusion, five patients had 5 or more units of blood transfused. The perinatal mortality was 69.6%, there was no maternal death.Conclusions: the major predisposing factors to uterine rupture in our facility were lack of antenatal care, presence of previous caesarean section scar and injudicious use of uterotonics

The current pattern of facility-based perinatal and neonatal mortality in Sagamu, Nigeria

Background: Perinatal and neonatal mortality rates have been described as sensitive indices of the quality of health care services. Regular audits of perinatal and neonatal mortalities are desirable to evaluate the various global interventions. Objective: To describe the current pattern of perinatal and neonatal mortality in a Nigerian tertiary health facility. Methods: Using a prospective audit method, the socio-demographic parameters of all perinatal and neonatal deaths recorded in a Nigerian tertiary facility between February 2017 and January 2018 were studied. Results: There were 1,019 deliveries with stillbirth rate of 27.5/1000 total births and early neonatal death (END) rate among in-born babies of 27.2/1000 live births. The overall perinatal mortality rate for in-facility deliveries was 53.9/1000 total births and neonatal mortality (till the end of 28 days) rate of 27.2/1000 live births. Severe perinatal asphyxia and prematurity were the leading causes of neonatal deaths while obstructed labour and intra-partum eclampsia were the two leading maternal conditions related to stillbirths (25.0% and 21.4% respectively). Gestational age < 32 weeks, age < 24 hours and inborn status were significantly associated with END (p = 0.002, p <0.001 and p = 0.002 respectively). Conclusion: The in-facility perinatal mortality rate was high though stillbirth rate was relatively low. There is a need to improve the quality of emergency obstetric and neonatal services prior to referral to tertiary facilities

Optimization and Isothermal Studies of Antibiotics Mixture Biosorption From Wastewater Using Palm Kernel, Chrysophyllum albidum, and Coconut Shells Biocomposite

The presence of persistent pharmaceutical products in water bodies is a significant problem that obstructs wastewater reuse. This study investigated the adsorption process for removing the recalcitrant antibiotics, including tetracycline (TC), ampicillin (AMP), and amoxicillin (AMOX) from an aqueous solution using a composite biosorbent made from a mixture of palm kernel shell (PKS), Chrysophyllum albidum (CAS), and coconut shell (CS). Simplex centroid design in the Design of Expert (12.0.1.0) was applied to optimize the percentage composition (20-55%) of the composite biosorbent precursor and to remove TC-AMP-AMOX mixtures from the aqueous solution in a batch study. The equilibrium data were fitted to 12 isotherm models and analyzed statistically. The maximum adsorption capacity of 9.12 mg/g, 8.66 mg/g, and 7.11 mg/g was achieved for TC, AMP, and AMOX, respectively, using the biocomposite biosorbent with an optimal mixture of 55% PKS, 20% CAS, and 25% CS. The adsorption behavior of TC, AMP, and AMOX was well-described by the Langmuir/Elovich isotherm (R2=1.000), Hill-DeBoer (R2=0.9953), and Freundlich/ Halsey (R2=0.9898) models, respectively. The obtained results showed that the biocomposite PKS-CAS-CS leverages the individual adsorptive capacity of each constituent to enhance the adsorption process. Moreover, the composite biosorbent demonstrated excellent potential for removing recalcitrant pharmaceuticals from wastewater effectively

Treatment Outcomes in a Decentralized Antiretroviral Therapy Program: A Comparison of Two Levels of Care in North Central Nigeria

Background. Decentralization of antiretroviral therapy (ART) services is a key strategy to achieving universal access to treatment for people living with HIV/AIDS. Our objective was to assess clinical and laboratory outcomes within a decentralized program in Nigeria. Methods. Using a tiered hub-and-spoke model to decentralize services, a tertiary hospital scaled down services to 13 secondary-level hospitals using national and program guidelines. We obtained sociodemographic, clinical, and immunovirologic data on previously antiretroviral drug naïve patients aged ≥15 years that received HAART for at least 6 months and compared treatment outcomes between the prime and satellite sites. Results. Out of 7,747 patients, 3729 (48.1%) were enrolled at the satellites while on HAART, prime site patients achieved better immune reconstitution based on CD4+ cell counts at 12 (P < 0.001) and 24 weeks (P < 0.001) with similar responses at 48 weeks (P = 0.11) and higher rates of viral suppression (<400 c/mL) at 12 (P < 0.001) and 48 weeks (P = 0.03), but similar responses at 24 weeks (P = 0.21). Mortality was 2.3% versus 5.0% (P < 0.001) at prime and satellite sites, while transfer rate was 8.7% versus 5.5% (P = 0.001) at prime and satellites. Conclusion. ART decentralization is feasible in resource-limited settings, but efforts have to be intensified to maintain good quality of care

Strengthening retinopathy of prematurity screening and treatment services in Nigeria: a case study of activities, challenges and outcomes 2017-2020.

OBJECTIVES: Retinopathy of prematurity (ROP) will become a major cause of blindness in Nigerian children unless screening and treatment services expand. This article aims to describe the collaborative activities undertaken to improve services for ROP between 2017 and 2020 as well as the outcome of these activities in Nigeria. DESIGN: Descriptive case study. SETTING: Neonatal intensive care units in Nigeria. PARTICIPANTS: Staff providing services for ROP, and 723 preterm infants screened for ROP who fulfilled screening criteria (gestational age <34 weeks or birth weight ≤2000 g, or sickness criteria). METHODS AND ANALYSIS: A WhatsApp group was initiated for Nigerian ophthalmologists and neonatologists in 2018. Members participated in a range of capacity-building, national and international collaborative activities between 2017 and 2018. A national protocol for ROP was developed for Nigeria and adopted in 2018; 1 year screening outcome data were collected and analysed. In 2019, an esurvey was used to collect service data from WhatsApp group members for 2017-2018 and to assess challenges in service provision. RESULTS: In 2017 only six of the 84 public neonatal units in Nigeria provided ROP services; this number had increased to 20 by 2018. Of the 723 babies screened in 10 units over a year, 127 (17.6%) developed any ROP; and 29 (22.8%) developed type 1 ROP. Only 13 (44.8%) babies were treated, most by intravitreal bevacizumab. The screening criteria were revised in 2020. Challenges included lack of equipment to regulate oxygen and to document and treat ROP, and lack of data systems. CONCLUSION: ROP screening coverage and quality improved after national and international collaborative efforts. To scale up and improve services, equipment for neonatal care and ROP treatment is urgently needed, as well as systems to monitor data. Ongoing advocacy is also essential

Student Librarian Work Study Programmes in Academic Libraries: An Appraisal

This study explores whether the student work study programme of Hezekiah Oluwasanmi Library of Obafemi Awolowo University, Ile-Ife Nigeria programme has lived up to the purpose of its establishment. Existing circulation statistical records and interview were used to elicit information. The results of the appraisal reveal that there are challenges and prospects; and that the programme has complemented staff shortages, assisted indigent students, and contributed to academic excellence of the participating students. It is therefore recommended that more funds should be allocated to the programme and more students should be employed

Pattern of gynaecological malignancies in Jos

Context: Female cancer is a public health problem the world over. The malignancies of the female genital organs are major causes of morbidity and mortality which necessitates data for policy formulation and health planning.Objective: To document the relative frequency, age distribution and histological patterns of gynaecological malignancies seen at the Jos University Teaching Hospital (JUTH).Methodology: A retrospective 5 year review of all gynaecological malignancies seen at the JUTH. Main outcome measures: frequency, age distribution and histological patterns of gynaecological malignanciesResult: Female genital tract cancers account for 5.4% of gynaecological disorders in JUTH. The complete records of 203 out of 250 patients with gynaecological malignancies were retrieved giving a retrieval rate of 81.2%. Of these 203 case records, 152(74.9%) cases were from the uterine cervix while 31(15.3%) and 13(6.5%) cases were from the ovary and uterine corpus respectively. The vagina and vulva accounted for 3(1.4%) and 4(1.9%) cases respectively. Squamous cell carcinoma accounted for 93.4% of cervical cancers and 100% of vaginal and vulval cancers. Epithelial tumours accounted for 61% of ovarian tumours while choriocarcinoma accounted for 53.8% of cancers of the corpus uteri.Conclusion: Squamous cell cervical cancer is still the most common gynaecological malignancy in Jos. The challenges of HIV/AIDS and cervical screening need to be addressed to reduce its incidence.Keywords: Gynaecological cancers, pattern, frequency, histology, JosTrop J Obstet Gynaecol, 30 (1), April 201