Browsing by Author "Mwebaze, Raymond"

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Access to Affordable Medicines and Diagnostic Tests for Asthma and COPD in Sub Saharan Africa
(Springer, 2017-12-08) Kibirige, Davis; Kampiire, Leaticia; Atuhe, David; Mwebaze, Raymond; Katagira, Winceslaus; Muttamba, Winters; Nantanda, Rebecca; Worodria, William; Kirenga, Bruce
Background: Equitable access to affordable medicines and diagnostic tests is an integral component of optimal clinical care of patients with asthma and chronic obstructive pulmonary disease (COPD). In Uganda, we lack contemporary data about the availability, cost and affordability of medicines and diagnostic tests essential in asthma and COPD management. Methods: Data on the availability, cost and affordability of 17 medicines and 2 diagnostic tests essential in asthma and COPD management were collected from 22 public hospitals, 23 private and 85 private pharmacies. The percentage of the available medicines and diagnostic tests, the median retail price of the lowest priced generic brand and affordability in terms of the number of days’ wages it would cost the least paid public servant were analysed. Results: The availability of inhaled short acting beta agonists (SABA), oral leukotriene receptor antagonists (LTRA), inhaled LABA-ICS combinations and inhaled corticosteroids (ICS) in all the study sites was 75%, 60.8%, 46.9% and 45.4% respectively. None of the study sites had inhaled long acting anti muscarinic agents (LAMA) and inhaled long acting beta agonist (LABA)-LAMA combinations. Spirometry and peak flow-metry as diagnostic tests were available in 24.4% and 6.7% of the study sites respectively. Affordability ranged from 2.2 days’ wages for inhaled salbutamol to 17.1 days’ wages for formoterol/budesonide inhalers and 27.8 days’ wages for spirometry. Conclusion: Medicines and diagnostic tests essential in asthma and COPD care are not widely available in Uganda and remain largely unaffordable. Strategies to improve access to affordable asthma and COPD medicines and diagnostic tests should be implemented in Uganda.
Assessment of a Pilot Antiretroviral Drug Therapy Programme in Uganda: Patients' Response, Survival, and Drug Resistance
(Elsevier, 2002-07-06) Weidle, J Paul; Malamba, Samuel; Mwebaze, Raymond; Sozi, Catherine; Rukundo, Gideon; Downing, Robert; Hanson, Debra; Ochola, Dorothy; Mugyenyi, Peter; Mermin, Jonathan; Samb, Badara; Lackritz, Eve
Background Little is known about how to implement antiretroviral treatment programmes in resource-limited countries. We assessed the UNAIDS/Uganda Ministry of Health HIV Drug Access Initiative—one of the first pilot antiretroviral programmes in Africa—in which patients paid for their medications at negotiated reduced prices. Methods We assessed patients' clinical and laboratory information from August, 1998, to July, 2000, from three of the five accredited treatment centres in Uganda, and tested a subset of specimens for phenotypic drug resistance. Findings 912 patients presented for care at five treatment centres. We assessed the care of 476 patients at three centres, of whom 399 started antiretroviral therapy. 204 (51%) received highly active antiretroviral therapy (HAART), 189 (47%) dual nucleoside reverse transcriptase inhibitors (2NRTI), and six (2%) NRTI monotherapy. Median baseline CD4 cell counts were 73 cells/μL (IQR 15–187); viral load was 193 817 copies/mL (37 013–651 716). The probability of remaining alive and in care was 0·63 (95% CI 0·58–0·67) at 6 months and 0·49 (0·43–0·55) at 1 year. Patients receiving HAART had greater virological responses than those receiving 2NRTI. Cox's proportional hazards models adjusted for viral load and regimen showed that a CD4 cell count of less than 50 cells/μL (vs 50 cells/μL or more) was strongly associated with death (hazard ratio 2·93 [1·51–5·68], p=0·001). Among 82 patients with a viral load of more than 1000 copies/mL more than 90 days into therapy, phenotypic resistance to NRTIs was found for 47 (57%): 29 of 37 (78%) who never received HAART versus 18 of 45 (40%) who received HAART (p=0·0005). Interpretation This pilot programme successfully expanded access to antiretroviral drugs in Uganda. Identification and treatment of patients earlier in the course of their illness and increased use of HAART could improve probability of survival and decrease drug resistance.
Assessment of Second-Line Antiretroviral Regimens for HIV Therapy in Africa
(Massachusetts Medical Society., 2014-07-17) Paton, I. Nicholas; Kityo, Cissy; Hoppe, Anne; Reid, Andrew; Kambugu, Andrew; Lugemwa, Abbas; Oosterhout, van J. Joep; Kiconco, Mary; Siika, Abraham; Mwebaze, Raymond; Abwola, Mary; Abongomera, George; Mweemba, Aggrey; Alima, Hillary; Atwongyeire, Dickens; Nyirenda, Rose; Boles, Justine; Thompson, Jennifer; Tumukunde, Dinah; Chidziva, Ennie; Mambule, Ivan; Arribas, R. Jose; Easterbrook, J. Philippa; Hakim, James; Walker, Sarah A.; Mugyenyi, Peter
Background The efficacy and toxic effects of nucleoside reverse-transcriptase inhibitors (NRTIs) are uncertain when these agents are used with a protease inhibitor in second-line therapy for human immunodeficiency virus (HIV) infection in resource-limited settings. Removing the NRTIs or replacing them with raltegravir may provide a benefit. Methods In this open-label trial in sub-Saharan Africa, we randomly assigned 1277 adults and adolescents with HIV infection and first-line treatment failure to receive a ritonavir-boosted protease inhibitor (lopinavir–ritonavir) plus clinician-selected NRTIs (NRTI group, 426 patients), a protease inhibitor plus raltegravir in a superiority comparison (raltegravir group, 433 patients), or protease-inhibitor monotherapy after 12 weeks of induction therapy with raltegravir in a noninferiority comparison (monotherapy group, 418 patients). The primary composite end point, good HIV disease control, was defined as survival with no new World Health Organization stage 4 events, a CD4+ count of more than 250 cells per cubic millimeter, and a viral load of less than 10,000 copies per milliliter or 10,000 copies or more with no protease resistance mutations at week 96 and was analyzed with the use of imputation of data (≤4%). Results Good HIV disease control was achieved in 60% of the patients (mean, 255 patients) in the NRTI group, 64% of the patients (mean, 277) in the raltegravir group (P=0.21 for the comparison with the NRTI group; superiority of raltegravir not shown), and 55% of the patients (mean, 232) in the monotherapy group (noninferiority of monotherapy not shown, based on a 10-percentage-point margin). There was no significant differ ence in rates of grade 3 or 4 adverse events among the three groups (P=0.82). The viral load was less than 400 copies per milliliter in 86% of patients in the NRTI group, 86% in the raltegravir group (P=0.97), and 61% in the monotherapy group (P<0.001). Conclusions When given with a protease inhibitor in second-line therapy, NRTIs retained substantial virologic activity without evidence of increased toxicity, and there was no advantage to replacing them with raltegravir. Virologic control was inferior with protease-inhibitor monotherapy. (Funded by European and Developing Countries Clinical Trials Partnership and others; EARNEST Current Controlled Trials number, ISRCTN 37737787, and ClinicalTrials.gov number, NCT00988039.)
Development of Phenotypic and Genotypic Resistance to Antiretroviral Therapy in the UNAIDS HIV Drug Access Initiative – Uganda
(Wolters Kluwer Health, Inc., 2003-07) Weidlea, J. Paul; Downingb, Robert; Sozic, Catherine; Mwebaze, Raymond; Rukundo, Gideon; Malamba, Samuel; Respessa, Richard; Hertogsf, Kurt; Larderg, Brendan; Ochola, Dorothy; Mermin, Jonathan; Badara Sambk, Badara; Lackritz, Eve
Objective: We describe phenotypic drug resistance, response to therapy, and geno-typic mutations among HIV-infected patients in Uganda taking antiretroviral medica-tions for ≥ 90 days who had a viral load ≥ 1000 copies/ml. Methods: HIV-1 group and subtype, virologic and immunologic responses to anti-retroviral therapy, phenotypic resistance to antiretroviral drugs, and associated geno-typic mutations among patients at three treatment centers in Uganda between June 1999 and August 2000 were assessed. Therapy was two nucleoside reverse tran-scriptase inhibitors (NRTIs) or highly active antiretroviral therapy (HAART). Results: All HIV identified was HIV-1, group M, subtypes A, C, and D. Sixty-one (65%) of 94 patients with a phenotypic resistance result had evidence of phenotypic resistance including resistance to a NRTI for 51 of 92 (55%) taking NRTIs, to a non-nucleoside reverse transcriptase inhibitor (NNRTI) for nine of 16 (56%) taking NNRTIs, and to a protease inhibitor (PI) for eight of 37 (22%) taking PIs. At the time of the first specimen with resistance, the median change from baseline viral load was –0.56 log copies/ml [interquartile range (IQR), –1.47 to +0.29] and CD4+ cell count was +35 × 106 cells/l (IQR, –18 to +87). Genotypic resistance mutations, matched with phenotypic resistance assay results and drug history, were generally consistent with those seen for HIV-1, group M, subtype B infections in industrialized countries. Conclusion: Initial phenotypic resistance and corresponding genotypic mutations among patients treated in Uganda were similar to those with subtype B infections in North America and Europe. These data support policies that promote the use of HAART regimens against HIV-1, group M, non-B subtypes in a manner consistent with that used for subtype B infections.
Long-Term Experience Providing Antiretroviral Drugs in a Fee-for-Service HIV Clinic in Uganda
(Wolters Kluwer Health, Inc., 2005-04-15) Kabugo, Charles; Bahendeka, Sylver; Mwebaze, Raymond; Malamba, Samuel; Katuntu, David; Downing, Robert; Mermin, Jonathan; Weidle, J. Paul
Objective: To describe the long-term experience of providing anti-retroviral (ARV) therapy, including CD4+ cell count and virologic response, at St. Francis Hospital, Nsambya, Uganda. Methods: The HIV clinic established in 1998 is a fee-for-service model where patients pay for ARVs. The care of patients who started ARVs from August 1, 1998 until October 31, 2000 was evaluated through December 31, 2002. Data were collected at the HIV clinic on standardized clinical forms. These patients had free CD4+ cell count and viral load testing performed at times determined by the physician. All persons who had ≥1 CD4+ cell count or viral load done ≥90 days after starting therapy were evaluated. Results: Three hundred twenty-one patients (49% women, 66% ARV naive, median age = 38 years, median CD4+ cell count = 79 cells/mm3, and median viral load = 249,489 copies/mL) attended the HIV clinic. Two hundred sixty-three (82%) patients returned at least once after the initial visit, of whom 54 (21%) had an interruption in therapy for >1 year. One hundred thirty-five patients were in care in 2002, 69 were known to have died (9 of whom died in 2002), and 68 were lost to follow-up. The probability of remaining alive and in care at 1 year was 0.56 (95% confidence interval [CI]: 0.50-0.61), 0.46 (95% CI: 0.41-0.51) at 2 years, 0.40 (95% CI: 0.34-0.45) at 3 years, and 0.35 (95% CI: 0.29-0.41) at 4 years. In an on-treatment analysis, the median CD4+ cell count increase during year 1 was +55 cells/mm3, +112 cells/mm3 during year 2, +142 cells/mm3 during year 3, and +131 cells/mm3 during year 4. The median log viral load change from baseline during year 1 was −1.4 copies/mL, −1.32 copies/mL during year 2, −1.9 copies/mL during year 3, and −1.51 copies/mL during year 4. Conclusions: This fee-for-service HIV clinic providing ARV treatment has successfully operated and managed patients for more than 4 years. Those who survived and remained on therapy derived long-term virologic and immunologic responses to ARV drugs in a manner similar to that observed in industrialized countries. Strategies to reduce the financial burden and other barriers to uninterrupted care as well as incentives to increase such practice models should be further explored in the African context.
Lopinavir Plus Nucleoside Reverse-transcriptase Inhibitors, Lopinavir Plus Raltegravir, or Lopinavir Monotherapy for Second-line Treatment of HIV (EARNEST): 144-week Follow-up Results From a Randomised Controlled Trial
(Elsevier, 2018-01) Hakim, G. James; Thompson, Jennifer; Kityo, Cissy; Hoppe, Anne; Kambugu, Andrew; van Oosterhout, J Joep; Lugemwa, Abbas; Siika, Abraham; Mwebaze, Raymond; Mweemba, Aggrey; Abongomera, George; Thomason, J Margaret; Easterbrook, Philippa; Mugyenyi, Peter; Walker, A Sarah
Background Millions of HIV-infected people worldwide receive antiretroviral therapy (ART) in programmes using WHO-recommended standardised regimens. Recent WHO guidelines recommend a boosted protease inhibitor plus raltegravir as an alternative second-line combination. We assessed whether this treatment option offers any advantage over the standard protease inhibitor plus two nucleoside reverse-transcriptase inhibitors (NRTIs) second-line combination after 144 weeks of follow-up in typical programme settings. Methods We analysed the 144-week outcomes at the completion of the EARNEST trial, a randomised controlled trial done in HIV-infected adults or adolescents in 14 sites in five sub-Saharan African countries (Uganda, Zimbabwe, Malawi, Kenya, Zambia). Participants were those who were no longer responding to non-NRTI-based first-line ART, as assessed with WHO criteria, confirmed by viral-load testing. Participants were randomly assigned to receive a ritonavir-boosted protease inhibitor (lopinavir 400 mg with ritonavir 100 mg, twice per day) plus two or three clinician selected NRTIs (protease inhibitor plus NRTI group), protease inhibitor plus raltegravir (400 mg twice per day; protease inhibitor plus raltegravir group), or protease inhibitor monotherapy (plus raltegravir induction for first 12 weeks, re-intensified to combination therapy after week 96; protease inhibitor monotherapy group). Randomisation was by computer-generated randomisation sequence, with variable block size. The primary outcome was viral load of less than 400 copies per mL at week 144, for which we assessed non-inferiority with a one-sided α of 0·025, and superiority with a two-sided α of 0·025. The EARNEST trial is registered with ISRCTN, number 37737787. Findings Between April 12, 2010, and April 29, 2011, 1837 patients were screened for eligibility, of whom 1277 patients were randomly assigned to an intervention group. In the primary (complete-case) analysis at 144 weeks, 317 (86%) of 367 in the protease inhibitor plus NRTI group had viral loads of less than 400 copies per mL compared with 312 (81%) of 383 in the protease inhibitor plus raltegravir group (p=0·07; lower 95% confidence limit for difference 10·2% vs specified non-inferiority margin 10%). In the protease inhibitor monotherapy group, 292 (78%) of 375 had viral loads of less than 400 copies per mL; p=0·003 versus the protease inhibitor plus NRTI group at 144 weeks. There was no difference between groups in serious adverse events, grade 3 or 4 adverse events (total or ART-related), or events that resulted in treatment modification. Interpretation Protease inhibitor plus raltegravir offered no advantage over protease inhibitor plus NRTI in virological efficacy or safety. In the primary analysis, protease inhibitor plus raltegravir did not meet non-inferiority criteria. A regimen of protease inhibitor with NRTIs remains the best standardised second-line regimen for use in programmes in resource-limited settings.
Neurocognitive Function at the First-Line Failure and on the Second-Line Antiretroviral Therapy in Africa
(Wolters Kluwer Health, Inc., 2016-04-15) Kambugu, Andrew; Thompson, Jennifer; Hakim, James; Tumukunde, Dinah; van Oosterhout, Joep J.; Mwebaze, Raymond; Hoppe, Anne; Abach, James; Kwobah, Charles
Objective: To assess neurocognitive function at the first-line antiretroviral therapy failure and change on the second-line therapy. Design: Randomized controlled trial was conducted in 5 sub-Saharan African countries. Methods: Patients failing the first-line therapy according to WHO criteria after .12 months on non-nucleoside reverse transcriptase inhibitors-based regimens were randomized to the second-line therapy (open-label) with lopinavir/ritonavir (400 mg/100 mg twice daily) plus either 2–3 clinician-selected nucleoside reverse transcriptase inhibitors, raltegravir, or as monotherapy after 12-week induction with raltegra vir. Neurocognitive function was tested at baseline, weeks 48 and 96 using color trails tests 1 and 2, and the Grooved Pegboard test. Test results were converted to an average of the 3 individual test z-scores. Results: A total of 1036 patients (90% of those .18 years enrolled at 13 evaluable sites) had valid baseline tests (58% women, median: 38 years, viral load: 65,000 copies per milliliter, CD4 count: 73 cells per cubic millimeter). Mean (SD) baseline z-score was 22.96 (1.74); lower baseline z-scores were independently associated with older age, lower body weight, higher viral load, lower hemoglobin, less education, fewer weekly working hours, previous central nervous system disease, and taking fluconazole (P , 0.05 in multivariable model). Z-score was increased by mean (SE) of +1.23 (0.04) after 96 weeks on the second-line therapy (P , 0.001; n = 915 evaluable), with no evidence of difference between the treatment arms (P = 0.35). Conclusions: Patients in sub-Saharan Africa failing the first-line therapy had low neurocognitive function test scores, but performance improved on the second-line therapy. Regimens with more central nervous system-penetrating drugs did not enhance neurocognitive recovery indicating this need not be a primary consideration in choosing a second-line regimen.
Peripheral Arterial Disease among Adult Diabetic Patients Attending a Large Outpatient Diabetic Clinic at a National Referral Hospital in Uganda
(PLOS, 2014-08-18) Mwebaze, Raymond; Kibirige, Davis
Background: Peripheral arterial disease (PAD) is one of the recognised diabetic macro vascular complications. It is a marker of generalised systemic atherosclerosis and is closely associated with symptomatic coronary and cerebrovascular disease, hence significant morbidity and mortality. Among African adult diabetic populations, screening and diagnosis of PAD is frequently suboptimal. The aim of this study was to determine the prevalence and associated clinical factors of PAD in adult ambulatory diabetic patients attending the outpatient diabetic clinic of Mulago national referral and teaching hospital, Kampala Uganda. Methods: In this descriptive cross sectional study, 146 ambulatory adult diabetic patients were studied. Information about their socio-demographic and clinical characteristics, fasting lipid profile status, blood pressure, glycated haemoglobin (HbA1c) levels and presence of albuminuria was collected using a pre tested questionnaire. Measurement of ankle brachial index (ABI) to assess for PAD, defined as a ratio less than 0.9 was performed using a portable 5–10 MHz Doppler device. Clinical factors associated with PAD were determined by comparing specific selected characteristics in patients with PAD and those without. Results: The mean age/standard deviation of the study participants was 53.9/12.4 years with a male predominance (75, 51.4%). PAD was prevalent in 57 (39%) study participants. Of these, 34 (59.6%) had symptomatic PAD. The noted clinical factors associated with PAD in this study population were presence of symptoms of intermittent claudication and microalbuminuria. Conclusions: This study documents a high prevalence of PAD among adult ambulatory Ugandan diabetic patients. Aggressive screening for PAD using ABI measurement in adult diabetic patients should be emphasised in Uganda especially in the presence of symptoms of intermittent claudication and microalbuminuria
Predictors of Loss to Follow up Among Patients With Type 2 Diabetes Mellitus Attending a Private Not For Profit Urban Diabetes Clinic in Uganda – A Descriptive Retrospective Study
(BMC, 2019-08-23) Tino, Salome; Wekesa, Clara; Kamacooko, Onesmus; Makhoba, Anthony; Mwebaze, Raymond; Bengo, Samuel; Nabwato, Rose; Kigongo, Aisha; Ddumba, Edward; Mayanja, N. Billy; Kaleebu, Pontiano; Newton, Rob; Nyerinda, Moffat
Background: Although the prevalence of type 2 diabetes mellitus is increasing in Uganda, data on loss to follow up (LTFU) of patients in care is scanty. We aimed to estimate proportions of patients LTFU and document associated factors among patients attending a private not for profit urban diabetes clinic in Uganda. Methods: We conducted a descriptive retrospective study between March and May 2017. We reviewed 1818 out-patient medical records of adults diagnosed with type 2 diabetes mellitus registered between July 2003 and September 2016 at St. Francis Hospital - Nsambya Diabetes clinic in Uganda. Data was extracted on: patients’ registration dates, demographics, socioeconomic status, smoking, glycaemic control, type of treatment, diabetes mellitus complications and last follow-up clinic visit. LTFU was defined as missing collecting medication for six months or more from the date of last clinic visit, excluding situations of death or referral to another clinic. We used Kaplan-Meier technique to estimate time to defaulting medical care after initial registration, log-rank test to test the significance of observed differences between groups. Cox proportional hazards regression model was used to determine predictors of patients’ LTFU rates in hazard ratios (HRs). Results: Between July 2003 and September 2016, one thousand eight hundred eighteen patients with type 2 diabetes mellitus were followed for 4847.1 person-years. Majority of patients were female 1066/1818 (59%) and 1317/1818 (72%) had poor glycaemic control. Over the 13 years, 1690/1818 (93%) patients were LTFU, giving a LTFU rate of 34.9 patients per 100 person-years (95%CI: 33.2–36.6). LTFU was significantly higher among males, younger patients (< 45 years), smokers, patients on dual therapy, lower socioeconomic status, and those with diabetes complications like neuropathy and nephropathy. Conclusion: We found high proportions of patients LTFU in this diabetes clinic which warrants intervention studies targeting the identified risk factors and strengthening follow up of patients
Suboptimal Glycaemic and Blood Pressure Control and Screening for Diabetic Complications in Adult Ambulatory Diabetic Patients in Uganda
(Springer, 2014-03-04) Kibirige, Davis; Atuhe, David; Sebunya, Robert; Mwebaze, Raymond
Background: Currently, Sub Saharan Africa is faced with a substantial burden from diabetes mellitus. In most of the African countries, screening for diabetes related complications and control of blood pressure and glycaemic levels is often suboptimal. The study aimed at assessing the extent of optimal glycaemic and blood pressure control and the frequency of screening for diabetic complications in adult ambulatory Ugandan diabetic patients. Methods: This was a retrospective study of 250 medical records of adult diabetic patients attending the outpatient diabetic clinic at St. Raphael of St. Francis hospital Nsambya in Kampala, Uganda. Results: The mean age of the patients was 51.6 ± 9.2 years with the majority being females (155, 62%). Using fasting blood glucose levels assessed in all the patients, optimal glycemic control of <7.2 mmol/l was noted in 42.8% of the patients. Glycated haemoglobin was performed at least once in the last year in 24 (9.6%) patients , of which 5 (20.8%) of these attained optimal control of <7%. Optimal blood pressure (BP) control defined as BP ≤140/ 80 mmHg was noted in 56% of the patients. Hypertension and diabetic neuropathy were the most screened for diabetic complications in 100% and 47.2% of the patients respectively and were also the most prevalent diabetic complications (76.4% and 31.2% respectively). Conclusions: This study demonstrates that glycemic and blood pressure control and screening for diabetic complications among the adult ambulatory diabetic patients in this urban diabetic clinic is suboptimal. This substantiates development and implementation local guidelines to improve diabetes care.
Therapeutic Responses to AZT 1 3TC 1 EFV in Advanced Antiretroviral Naive HIV Type 1-Infected Ugandan Patients
(Mary Ann Liebert, Inc., 2004-07-05) Kebba, Anthony; Atwine, Diana; Mwebaze, Raymond; Kityo, Cissy; Nakityo, Rose; Mulenyi, Peter
Convenient, non-food-dependent dosing, low tablet volume, and relatively low cost have made nonnucleoside reverse transcriptase inhibitors a first choice for both clinicians and patients in Uganda. Concerns exist as to their efficacy in patients with viral loads (VL) above 100,000 copies/ml, a feature common to about 75% of HIV-1-infected patients presenting at the Joint Clinical Research Center (JCRC) in Uganda. Furthermore, there are few data on the response to such therapy of non-B subtypes, A and D, predominant in Uganda. Presented here is a retrospective analysis of therapeutic responses in 11 antiretroviral (ARV) naïve HIV-1-infected Ugandan patients who had been initiated on zidovudine (AZT), lamivudine (3TC), and efavirenz (EFV). Laboratory assessments subsequent to initiation of ARV therapy, done at 11.6 ± 3.9 weeks and 30.6 ± 5.9 weeks, showed 88.9 and 71.4% patients achieved undetectable viral load, respectively. Virological suppression to below detection occurred in 85.7% of patients at 11.6 weeks despite baseline VL ≥ 100,000 copies/ml. At 31 weeks there was a median increment of +183 cells/mm3 in CD4+ T lymphocytes. These findings reflect significant efficacy in the use of AZT + 3TC + EFV in advanced ARV naive non-B subtype HIV-1-infected patients. The therapeutic responses were comparable to those previously described in the western world.
Vitamin B12 Deficiency Among Patients With Diabetes Mellitus: Is Routine Screening and Supplementation Justified?
(Springer, 2013-05-07) Kibirige, Davis; Mwebaze, Raymond
Vitamin B12 is an essential micronutrient required for optimal hemopoetic, neuro-cognitive and cardiovascular function. Biochemical and clinical vitamin B12 deficiency has been demonstrated to be highly prevalent among patients with type 1 and type 2 diabetes mellitus. It presents with diverse clinical manifestations ranging from impaired memory, dementia, delirium, peripheral neuropathy, sub acute combined degeneration of the spinal cord, megaloblastic anemia and pancytopenia. This review article offers a current perspective on the physiological roles of vitamin B12, proposed pathophysiological mechanisms of vitamin B12 deficiency, screening for vitamin B12 deficiency and vitamin B12 supplementation among patients with diabetes mellitus.
Vitamin B12 Deficiency Among Patients With Diabetes Mellitus: Is Routine Screening and Supplementation Justified?
(Bio Med Central, 2013) Mwebaze, Raymond; Kibirige, Davis
Vitamin B12 is an essential micronutrient required for optimal hemopoetic, neuro-cognitive and cardiovascular function. Biochemical and clinical vitamin B12 deficiency has been demonstrated to be highly prevalent among patients with type 1 and type 2 diabetes mellitus. It presents with diverse clinical manifestations ranging from impaired memory, dementia, delirium, peripheral neuropathy, sub acute combined degeneration of the spinal cord, megaloblastic anemia and pancytopenia. This review article offers a current perspective on the physiological roles of vitamin B12, proposed pathophysiological mechanisms of vitamin B12 deficiency, screening for vitamin B12 deficiency and vitamin B12 supplementation among patients with diabetes mellitus.