Effect of Exercise Versus Metformin among Nigerians with Prediabetes: A Randomised Controlled Trial.

BACKGROUND: Prediabetes is an important risk factor for the development of type 2 diabetes and is common in Nigeria. Prediabetes often progresses to type 2 diabetes but effective intervention can reverse the carbohydrate intolerance associated with the condition. No studies have been reported among Nigerians on the natural outcome or effect of intervention in prediabetes. OBJECTIVE: To determine and compare the effect of moderate exercise and metformin on glucose tolerance among the participants with prediabetes. METHODOLOGY: Using a randomized placebo-controlled design, 54 Nigerians with prediabetes were selected using simple random sampling. They were offered treatment with metformin, moderate exercise, or placebo and followed up for 12 weeks. Plasma glucose levels were assessed before and after the interventions and the outcome was compared. RESULTS: Forty-nine participants with prediabetes completed the study. Compared to placebo the exercise group had a significant decrease in glycaemic level from the baseline, FPG=5.1mmol/L (6.4% reduction) and 2HPGL=7.6mm/L (20.5% reduction) p-value<0.05. The metformin group also had a significant decrease in glycaemic level from the baseline, FPG=5.1mmol/L (13.3% reduction) and 2HPGL=7.9mmol/L (12.4% reduction) p-value<0.05. Diabetes risk reduction for exercise and metformin interventions were 50% and 40%respectively. CONCLUSION: Among Nigerians with prediabetes, moderate exercise, and metformin interventions have significantly higher efficacy than placebo in improving glucose tolerance. However, moderate exercise and metformin have comparable efficacy in improving glucose tolerance and diabetes risk reduction. Participants in this study need to be followed up for a longer period to assess the long-term effects of these interventions.

CONTEXTE: Le prédiabète est un facteur de risque important du développement du diabète de type 2 et est fréquent au Nigeria. Le prédiabète évolue souvent vers le diabète de type 2, mais une intervention efficace peut inverser l'intolérance aux glucides associée à cette affection. Aucune étude n'a été rapportée chez les Nigérians sur l'évolution naturelle ou l'effet de l'intervention dans le prédiabète. OBJECTIF: Déterminer et comparer l'effet de l'exercice modéré et de la metformine sur la tolérance au glucose chez les participants atteints de prédiabète. MÉTHODOLOGIE: Selon un plan randomisé contrôlé par placebo, 54 Nigérians atteints de prédiabète ont été sélectionnés par échantillonnage aléatoire simple. Ils ont reçu un traitement par metformine, de l'exercice modéré ou un placebo et ont été suivis pendant 12 semaines. Les niveaux de glucose plasmatique ont été évalués avant et après les interventions et les résultats ont été comparés. RÉSULTATS: Quarante-neuf participants atteints de prédiabète ont terminé l'étude. Par rapport au placebo, le groupe exercice a présenté une diminution significative du taux de glycémie par rapport à la valeur de base, FPG = 5,1 mmol/L (réduction de 6,4 %) et 2HPGL = 7,6 mmol/L (réduction de 20,5 %), p-value < 0,05. Le groupe metformine a également présenté une diminution significative du taux de glycémie par rapport à la valeur de base, FPG = 5,1 mmol/L (réduction de 13,3 %) et 2HPGL = 7,9 mmol/L (réduction de 12,4 %), p-value < 0,05. La réduction du risque de diabète pour les interventions exercice et metformine était respectivement de 50 % et 40 %. CONCLUSION: Chez les Nigérians atteints de prédiabète, les interventions d'exercice modéré et de metformine ont une efficacité significativement supérieure au placebo pour améliorer la tolérance au glucose. Cependant, l'exercice modéré et la metformine ont une efficacité comparable pour améliorer la tolérance au glucose et réduire le risque de diabète. Les participants à cette étude doivent être suivis sur une plus longue période pour évaluer les effets à long terme de ces interventions. MOTS-CLÉS: Diabète de type 2, Prédiabète, Exercice, Metformine, Nigérians.

Cadmium toxicity symptoms and uptake mechanism in plants: a review

Abstract Cadmium (Cd) is one of non-essential heavy metals which is released into environment naturally or anthropogenically. It is highly persistent toxic metals that are exceptionally distressing industrial and agriculture activities by contaminating soil, water and food. Its long-duration endurance in soil and water results in accumulation and uptake into plants, leading to the food chain. This becomes a serious global problem threatening humans and animals as food chain components. Living organisms, especially humans, are exposed to Cd through plants as one of the main vegetative food sources. This review paper is concentrated on the symptoms of the plants affected by Cd toxicity. The absorption of Cd triggers several seen and unseen symptoms by polluted plants such as stunted growth, chlorosis, necrosis and wilting. Apart from that, factors that affect the uptake and translocation of Cd in plants are elaborated to understand the mechanism that contributes to its accumulation. By insight of Cd accumulation, this review also discussed the phytoremediation techniques-phytoextraction, phytostimulation, phytostabilization, phytovolatization and rhizofiltration in bioremediating the Cd.

Resumo O cádmio (Cd) é um dos metais pesados não essenciais que é liberado no meio ambiente de forma natural ou antropogênica. São metais tóxicos altamente persistentes que prejudicam excepcionalmente as atividades industriais e agrícolas, contaminando o solo, a água e os alimentos. Sua resistência de longa duração no solo e na água resulta em acúmulo e absorção pelas plantas, levando à cadeia alimentar. Isso se torna um sério problema global que ameaça humanos e animais como componentes da cadeia alimentar. Os organismos vivos, principalmente os humanos, são expostos ao Cd através das plantas como uma das principais fontes de alimento vegetativo. Este artigo de revisão concentra-se nos sintomas das plantas afetadas pela toxicidade do Cd. A absorção de Cd desencadeia vários sintomas visíveis e invisíveis por plantas poluídas, como crescimento atrofiado, clorose, necrose e murcha. Além disso, são elaborados fatores que afetam a absorção e translocação de Cd nas plantas para entender o mecanismo que contribui para o seu acúmulo. A partir do conhecimento do acúmulo de Cd, esta revisão também discutiu as técnicas de fitorremediação - fitoextração, fitoestimulação, fitoestabilização, fitovolatização e rizofiltração na biorremediação do Cd.

Cadmium toxicity symptoms and uptake mechanism in plants: a review / Sintomas de toxicidade de cádmio e mecanismo de absorção em plantas: uma revisão

Cadmium (Cd) is one of non-essential heavy metals which is released into environment naturally or anthropogenically. It is highly persistent toxic metals that are exceptionally distressing industrial and agriculture activities by contaminating soil, water and food. Its long-duration endurance in soil and water results in accumulation and uptake into plants, leading to the food chain. This becomes a serious global problem threatening humans and animals as food chain components. Living organisms, especially humans, are exposed to Cd through plants as one of the main vegetative food sources. This review paper is concentrated on the symptoms of the plants affected by Cd toxicity. The absorption of Cd triggers several seen and unseen symptoms by polluted plants such as stunted growth, chlorosis, necrosis and wilting. Apart from that, factors that affect the uptake and translocation of Cd in plants are elaborated to understand the mechanism that contributes to its accumulation. By insight of Cd accumulation, this review also discussed the phytoremediation techniques-phytoextraction, phytostimulation, phytostabilization, phytovolatization and rhizofiltration in bioremediating the Cd.

O cádmio (Cd) é um dos metais pesados ​​não essenciais que é liberado no meio ambiente de forma natural ou antropogênica. São metais tóxicos altamente persistentes que prejudicam excepcionalmente as atividades industriais e agrícolas, contaminando o solo, a água e os alimentos. Sua resistência de longa duração no solo e na água resulta em acúmulo e absorção pelas plantas, levando à cadeia alimentar. Isso se torna um sério problema global que ameaça humanos e animais como componentes da cadeia alimentar. Os organismos vivos, principalmente os humanos, são expostos ao Cd através das plantas como uma das principais fontes de alimento vegetativo. Este artigo de revisão concentra-se nos sintomas das plantas afetadas pela toxicidade do Cd. A absorção de Cd desencadeia vários sintomas visíveis e invisíveis por plantas poluídas, como crescimento atrofiado, clorose, necrose e murcha. Além disso, são elaborados fatores que afetam a absorção e translocação de Cd nas plantas para entender o mecanismo que contribui para o seu acúmulo. A partir do conhecimento do acúmulo de Cd, esta revisão também discutiu as técnicas de fitorremediação - fitoextração, fitoestimulação, fitoestabilização, fitovolatização e rizofiltração na biorremediação do Cd.

A Retrospective Study on Changing Trends of Acquired Immunodeficiency Syndrome related Kaposi's Sarcoma in North-Western Nigeria.

BACKGROUND: The prevalence of AIDS-related Kaposi's sarcoma (KS) has been reducing following the widespread use of highly-active anti-retroviral therapy (HAART). In Nigeria, recent trends in the prevalence of KS in HIV-infected patients has not been described. We determined the prevalence, clinical pattern and treatment outcome of AIDS-related KS in Zaria, Nigeria. METHODS: Over a 5-year period, a retrospective study was conducted at the HIV treatment and care centre of Ahmadu Bello University Teaching Hospital, Zaria and all patients with histologically confirmed AIDS-related KS were included. RESULTS: A total of 4721 patients were enrolled during the period under review, out of which 45 were diagnosed with AIDS related KS, which constituted 0.95% of all patient seen. The male to female ratio was 1:1.5 with a mean age of 35.2 ± 6.5 years. Twenty-six (58%) were on HAART, with median duration of 4 months (IQR: 1-31 months) between HAART commencement and KS diagnosis, while KS was reported as presenting illness in 19 (42%) patients. The lower extremity was the most frequently involved site in 24 (53.3%) patients and disseminated disease was present in 14 (31.1%) patients, commoner in the HAART-naïve group. Following KS treatment, 27 (60%) patients recovered fully, 12 (26.7%) died, while 6 (13.3%) were lost to follow up. Disseminated disease, male gender, and low CD4+ T-cell count was associated with higher mortality. CONCLUSION: Kaposi's sarcoma remains an important AIDS defining illness though with a decreasing prevalence. Early diagnosis and treatment should be prioritized at the time of HAART initiation in HIV service delivery programs in Nigeria.

CONTEXTE: La prévalence du sarcome de Kaposi (KS) lié au SIDA a diminué à la suite de l'utilisation généralisée de la thérapie antirétrovirale hautement active (HAART). Au Nigeria, les tendances récentes de la prévalence du KS chez les patients infectés par le VIH n'ont pas été décrites. Nous avons déterminé la prévalence, le profil clinique et le résultat du traitement du KS lié au SIDA à Zaria, au Nigeria. MÉTHODES: Sur une période de 5 ans, une étude rétrospective a été menée au centre de traitement et de soins du VIH de l'Ahmadu Bello University Teaching Hospital, Zaria, et tous les patients présentant un KS lié au SIDA confirmé histologiquement ont été inclus. RÉSULTATS: Un total de 4721 patients ont été inscrits au cours de la période examinée, dont 45 ont été diagnostiqués avec un KS lié au SIDA, ce qui constituait 0,95% de tous les patients vus. Le rapport hommes/femmes était de 1:1,5 avec un âge moyen de 35,2 ± 6,5 ans. Vingt-six (58%) étaient sous HAART, avec une durée médiane de 4 mois (IQR : 1-31 mois) entre le début de la HAART et le diagnostic de KS, tandis que le KS a été signalé comme la maladie principale chez 19 (42%) patients. Le membre inférieur était le site le plus fréquemment touché chez 24 (53,3 %) patients et une maladie disséminée était présente chez 14 (31,1 %) patients, plus fréquente dans le groupe n'ayant jamais reçu de traitement HAART. Après le traitement par KS, 27 (60%) patients se sont complètement rétablis, 12 (26,7%) sont décédés, tandis que 6 (13,3%) ont été perdus de vue. Maladie disséminée, sexe masculin, et un faible nombre de lymphocytes T CD4+ était associé à une mortalité plus élevée. CONCLUSION: Le sarcome de Kaposi reste une importante maladie définissant le SIDA, bien que sa prévalence soit en baisse. Le diagnostic et le traitement précoces devraient être prioritaires au moment de l'initiation de la thérapie HAART dans les programmes de prestation de services VIH au Nigeria. Mots clés: Sarcome de Kaposi, SIDA, prévalence, HAART.

Cadmium toxicity symptoms and uptake mechanism in plants: a review.

Cadmium (Cd) is one of non-essential heavy metals which is released into environment naturally or anthropogenically. It is highly persistent toxic metals that are exceptionally distressing industrial and agriculture activities by contaminating soil, water and food. Its long-duration endurance in soil and water results in accumulation and uptake into plants, leading to the food chain. This becomes a serious global problem threatening humans and animals as food chain components. Living organisms, especially humans, are exposed to Cd through plants as one of the main vegetative food sources. This review paper is concentrated on the symptoms of the plants affected by Cd toxicity. The absorption of Cd triggers several seen and unseen symptoms by polluted plants such as stunted growth, chlorosis, necrosis and wilting. Apart from that, factors that affect the uptake and translocation of Cd in plants are elaborated to understand the mechanism that contributes to its accumulation. By insight of Cd accumulation, this review also discussed the phytoremediation techniques-phytoextraction, phytostimulation, phytostabilization, phytovolatization and rhizofiltration in bioremediating the Cd.

Clinical profile of patients with diabetes mellitus in gusau, Northwestern, Nigeria.

Background: There are variable reports of glycemic control and complications among patients living with diabetes mellitus (DM). Aim: The aim of this study was to determine the glycemic control and complications among patients with DM seen at the medical outpatient department of a tertiary health institution in Northwestern Nigeria. Methodology: This was a descriptive cross-sectional study of 236 patients attending DM Clinic at Federal Medical Centre Gusau. A questionnaire was administered that contains sociodemographic characteristics of the patients, duration of DM, adherence to management, and complications. Anthropometry, blood pressures, and fasting plasma glucose (FPG) were recorded. Data were analyzed using SPSS version 20.0. Results: Eighty-six (36%) males and 150 (64%) females patients with DM were evaluated. Their mean (standard deviation [SD]) age was 53.5 ± 12.3 years with mean (SD) duration of DM of 7.9 ± 6.2 years. The mean FPG was 8.85 ± 3.8 mmol/L (males 8.21 ± 3.6, females 9.49 ± 3.8). Forty-seven (20%), 75 (32%), 113 (48%) of the patients had good, fair, and poor glycemic control, respectively. The major complications observed were peripheral neuropathy (61%) and visual impairment (51%). Glycemic control was significantly better among males and those with good adherence to medications. There was a positive association between the longer duration of DM with complications. Conclusion: Only 20% of our patients achieved good glycemic control and many have complications. Majority of the patients adhered more with medications as compared to dietary management and exercise. There is a need for clinicians to educate patients more on the need for lifestyle modifications.

RésuméConcernant les origines de la situation: Il y a des variables rapports glycémie de contrôle et des complications parmi les patients qui vie avec le diabète mellitus(DM). BUT: Le but de cet étude était pour déterminer le contrôle et les complications glycémie parmi les patients avec le DM vue dans le service de consultation tertiaire dans l'établissement de santé au Nord-ouest du Nigéria. Méthodologie: C'était une description transversale d'étude de 236 patients qui ont assistait à l'événement clinique de la DM au centre médical fédérale à Gusau.Un questionnaire était gérer à contenu de socio démographe de trait de caractère des patients, durée de la DM, hypertension, et le FPG qui se lit "Fasting plasma glucose" en anglais ont été enregistré. Les données ont été analysé avec l'utilisation de la SPSS version 20.0. Résultat: Quatre-vingt huit(36%) mâles et 150(64%) femelles des patients avec la DM ont été évalué. Leurs âges (écart-type) [ET]) moyenne était 53.5±12.3 ans avec une moyenne (ET) et avec une durée de DM de 7.9±6.2 ans. La moyenne et pauvre contrôle du glycémie respectivement. Les complications majeur observé était les périphériques neuropathie(61%) et malvoyants(51%). Le contrôle glycémie était sensiblement mieux parmi les mâles et avec ceux de bonnes médications. Il y avait une association positive entre une longue durée de la DM avec complication. Conclusion: Seul 20% de nos patients ont obtenu un bon contrôle de glycémie et d'autre avec beaucoup de complications. La majorité des patients se sont adhérent plus avec la médication comparer à la gestion diététique et exercice. Il y a la nécessité des clinicien d'instruire ou éduquer les patients plus suis la mode de vie de modification.

Pyopericardium with Cardiac Tamponade in a Nigerian Child with Acute Osteomyelitis.

In pyopericardium, pus accumulates in the pericardial space as a result of infection by pyogenic organisms, most common of which are Staphylococcus aureus and Mycobacterium tuberculosis. These patients are at risk of cardiac tamponade. Apart from pericardiocentesis in the management of these patients, definitive drug treatment may pose a formidable challenge in a setting of coinfection as in patients with tuberculosis who are predisposed to secondary bacterial infections. This was the case of our patient. We here highlight the challenges faced with etiologic diagnosis in resource-limited settings.

Outcome of Extremely Low Birth Weight Babies in Zaria; A Ten-Year Review.

BACKGROUND: Survival among extremely low birth weight (ELBW) babies (birth weight below 1000grams) in resource limited settings is still very low. The study aimed to determine the correlation between materno-foetal factors and outcome in this category of neonates. STUDY DESIGN: A retrospective study in which patients' records admitted into the Neonatal Unit of Ahmadu Bello University Teaching Hospital between January 2005 and December 2014 were retrieved. Information on neonates weighing < 1000 g were extracted and analyzed. Survival at discharge was the primary outcome. RESULTS: The overall survival rate of extremely low birth weight babies was 18%. Mortality in ELBW neonates weighing less than 750g was 100%. Factors that were significantly predictive of survival were birth weight, parity and duration of hospital stay with p-values of 0.014, 0.039 and 0.025 respectively CONCLUSION: The survival rate of ELBW babies remains low in our resource constrained setting. Focus should be on preventing preterm deliveries and as well equipping newborn care providers and newborn units with the necessary skills and materials respectively to enable implementation of evidence based interventions to improve newborn survival.

Prevalence and risk factors for hypertension and association with ethnicity in Nigeria: results from a national survey.

OBJECTIVE: Non-communicable diseases are now a global priority. We report on the prevalence of hypertension and its risk factors, including ethnicity, in a nationally representative sample of Nigerian adults recruited to a survey of visual impairment. METHODS: multi-stage, stratified, cluster random sample with probability proportional to size procedures was used to obtain a nationally representative sample of 13 591 subjects aged ≥ 40 years. Of these, 13 504 (99.4%) had a blood pressure measurement. RESULTS: The prevalence of hypertension was 44.9% [95% confidence interval (CI): 43.5-46.3% ]. Increasing age, gender, urban residence and body mass index were independent risk factors (p < 0.001). The Kanuri ethnic group had the highest prevalence of hypertension (77.5%, 95% CI: 71.0-84.0%). CONCLUSIONS: The high prevalence of hypertension in Nigeria is a cause for concern and suggests that it is inevitable that the impact of hypertension-related ill health is imminent, with the accompanying financial and societal costs to families and the state of Nigeria.

Coverage of hospital-based cataract surgery and barriers to the uptake of surgery among cataract blind persons in nigeria: the Nigeria National Blindness and Visual Impairment Survey.

PURPOSE: To determine cataract surgical coverage, and barriers to modern cataract surgery in Nigeria. METHODS: Multistage stratified cluster random sampling was used to identify a nationally representative sample of 15,027 persons aged 40+ years. All underwent visual acuity testing, frequency doubling technology visual field testing, autorefraction, and measurement of best corrected vision if <6/12 in one or both eyes. An ophthalmologist examined the anterior segment and fundus through an undilated pupil for all participants. Participants were examined by a second ophthalmologist using a slit lamp and dilated fundus examination using a 90 diopter condensing lens if vision was <6/12 in one or both eyes, there were optic disc changes suggestive of glaucoma, and 1 in 7 participants regardless of findings. All those who had undergone cataract surgery were asked where and when this had taken place. Individuals who were severely visually impaired or blind from unoperated cataract were asked to explain why they had not undergone surgery. RESULTS: A total of 13,591 participants were examined (response rate 89.9%). Prevalence of cataract surgery was 1.6% (95% confidence interval 1.4-1.8), significantly higher among those aged ≥70 years. Cataract surgical coverage (persons) in Nigeria was 38.3%. Coverage was 1.7 times higher among males than females. Coverage was only 9.1% among women in the South-South geopolitical zone. Over one third of those who were cataract blind said they could not afford surgery (36%). CONCLUSIONS: Cataract surgical coverage in Nigeria was among the lowest in the world. Urgent initiatives are necessary to improve surgical output and access to surgery.

Outcome of cataract surgery in Nigeria: visual acuity, autorefraction, and optimal intraocular lens powers--results from the Nigeria national survey.

OBJECTIVE: To describe presenting and corrected visual acuities after cataract surgery in a nationally representative sample of adults. Another objective was to describe refractive errors in operated eyes and to determine the optimal range of intraocular lens (IOL) powers for this population. DESIGN: Cross-sectional, population-based survey. PARTICIPANTS: Adults aged 40 years and more were selected using multistage stratified sampling and proportional to size procedures. A sample size of 15027 was calculated, and clusters were selected from all states. METHODS: Individuals who had undergone cataract surgery were identified from interview and examination. All had their presenting visual acuity (VA) measured using a reduced logarithm of the minimum angle of resolution chart and underwent autorefraction. Corrected VAs were assessed using the autorefraction results in a trial set. An ophthalmologist conducted all examinations, including slit-lamp and dilated fundus examination. Causes of visual loss were determined for all eyes with a presenting VA <6/12 using the World Health Organization recommendations. Biometry data were derived from 20449 phakic eyes using the SRK-T formula after excluding those with poor VA or corneal opacities. MAIN OUTCOME MEASURES: Presenting and corrected visual acuities in pseudo/aphakic individuals and autorefraction findings; biometry profile of Nigerian adults. RESULTS: Data from 288 eyes of 217 participants were analyzed. Only 39.5% of eyes had undergone IOL implantation at surgery. Only 29.9% of eyes had a good outcome (i.e., ≥6/18) at presentation, increasing to 55.9% with correction. Use of an IOL was the only factor associated with a good outcome at presentation (odds ratio 9.0; 95% confidence interval, 4.3-18.9; P=0.001). Eyes undergoing cataract surgery had a higher prevalence and degree of astigmatism than phakic eyes. Biometry data reveal that posterior chamber IOL powers of 20, 21, and 22 diopters (D) (A constant 118.0) will give a postoperative refraction range of -2.0 D to emmetropia in 71.4% of eyes, which increases to 82.6% if 19 D is also included. CONCLUSIONS: Postoperative astigmatism needs to be reduced through better surgical techniques and training, and use of biometry should be standard of care.

The ML flow test as a point of care test for leprosy control programmes: potential effects on classification of leprosy patients.

OBJECTIVE: To evaluate the use of the ML Flow test as an additional, serological, tool for the classification of new leprosy patients. DESIGN: In Brazil, Nepal and Nigeria, 2632 leprosy patients were classified by three METHODS: : (1) as multibacillary (MB) or paucibacillary (PB) according to the number of skin lesions (WHO classification), (2) by slit skin smear examination, and (3) by serology using the ML Flow test detecting IgM antibodies to Mycobacterium leprae-specific phenolic glycolipid-I. RESULTS: The proportion of MB leprosy patients was 39.5, 35.6 and 19.4% in Brazil, Nepal and Nigeria, respectively. The highest seropositivity in patients was observed in Nigeria (62.9%), followed by Brazil (50.8%) and Nepal (35.6%). ML Flow test results and smears were negative in 69.1 and 82.7% of PB patients, while smears were positive in 58.6% of MB patients in Brazil and 28.3% in Nepal. In MB patients, both smears and ML Flow tests were negative in 15.6% in Brazil and 38.3%, in Nepal. Testing all PB patients with the ML Flow test to prevent under-treatment would increase the MB group by 18, 11 and 46.2% for Brazil, Nepal and Nigeria, respectively. Using the ML Flow test as the sole criterion for classification would result in an increase of 11.3 and 43.5% of patients requiring treatment for MB leprosy in Brazil and Nigeria, respectively, and a decrease of 3.7% for Nepal. CONCLUSIONS: The ML Flow test could be used to strengthen classification, reduce the risk of under-treatment and minimize the need for slit skin smears.

Trace minerals in serum of sheep infected with Trypanosoma congolense.

Yankassa sheep (20) were grouped into A and B and infected with Trypanosoma congolense isolated from a cow and maintained in mice. Two milliliter x 10(7) parasites were used to infect group A. The course of the infection and serum trace minerals (Iron, (Fe) and Copper, (Cu) were studied and determined using Atomic Absorption Spectrophotometer (AAS). There was significant drop in concentration of iron (p<0.001) Post Infection (pi) while that of copper, no significant change (p>0.05). The values of the contemporaneously uninfected control sheep were significantly higher for iron and not for copper. Sheep are susceptible to isolate from cow and passaged in mice and with the fluctuating concentrations of Fe and consistency of Cu, it may suggest that these minerals may have a role in the pathogenesis of trypanosomosis due to T. congolense.

Prolapse of the nongravid horn in a cow with a seven-month pregnancy: A case report.

Prolapse of the right nongravid horn of the uterus in a cow with a 7 1 2 - mo pregnancy is reported. The condition occurred 4 d after a vagino-cervical prolapse was reduced and fixed by Minchev's technique. The everted uterine horn together with its corresponding ovary became gangrenous and detached due to eschemic necrosis resulting from the constriction of the partially closed cervix. The cow delivered a healthy bull calf without any complications 6 wk after the incidence. Rectal examination of the cow 3 mo later showed completion of involution, uterus unicornis with its left ovary and a mature corpus luteum. The absence of the right ovary and the right uterine horn did not seem to interfere with the normal estrous cycle.