Books are essential items to pack for summer travels, right next to the sunscreen and shades. These 12 recently published books—set in places from Hawaii to Zambia —challenge you to take a break from the overwhelming options of your streaming service to focus on the simple, summery act of reading or listening to words on a page. Scott Fitzgerald to dealing with Nazi commandants, who use the hotel as a headquarters when they occupy the French capital. What could possibly go wrong? Both cruising fans and skeptics alike will get a laugh out of this story of a family trying to stay afloat.
The Old Drift , by Namwali Serpell This epic novel following the lives of three intertwined families spans a history of Zambia, from the birth of the nation to its near future. Prepare to be surprised by inventive storytelling and settings that range from Victoria Falls to the Zambia National Academy of Science. Table 1. GFR, glomerular filtration rate. View Large. Microscopic hematuria. N Engl J Med. Tomson C, Porter T. Asymptomatic microscopic or dipstick haematuria in adults: which investigations for which patients?
- An Isolated Range (Range, #5) by Andrew Grey.
- UMA VIDA QUE PODERIA SER A SUA (Portuguese Edition);
- General Introduction.
A review of the evidence. BJU Int. Clinical importance of microhematuria. Sutton JM. Evaluation of hematuria in adults. Time to abandon testing for microscopic haematuria in adults? Br Med J. Recurrent haematuria: role of renal biopsy and investigative morbidity. Glassock RJ. Hematuria and proteinuria. Primer on kidney diseases. Evaluation of asymptomatic microscopic hematuria in adults: the Americal Urological Association best practice policy — part I: definition, detection, prevalence, and etiology.
The significance of adult hematuria: 1, hematuria evaluations including a risk-benefit and cost-effectiveness analysis. J Urol. Am Fam Physician. Evaluation of asymptomatic microscopic hematuria in adults: the American Urological Association Best Practice Policy—part II: patient evaluation, cytology, voided markers, imaging, cystoscopy, nephrology evaluation, and follow-up.
Microscopic examination of the urine sediment. Urinalysis and body fluids: a color text and atlas. Acanthocyturia: a characteristic marker for glomerular bleeding. Kidney Int. Prediction of creatinine clearance from serum creatinine. A more accurate method to estimate glomerular filtration rate from serum creatinine: A new prediction equation. Ann Intern Med. National Kidney Foundation practice guidelines for chronic kidney disease: evaluation, classification, and stratification. Kaplan EL, Meier P. Nonparametric estimation from incomplete observations.
J Am Stat Assoc. Leung NW. Patterns of viral hepatitis in Hong Kong. Br J Hosp Med. Asymptomatic microscopic hematuria—is investigation necessary? J Clin Epidemiol. Significance of microhaematuria in young adults. Glomerular disease as a cause of isolated microscopic haematuria. Q J Med. Unexplained haematuria may be due to slowly progressive glomerular disease. A prospective study of the natural history of idiopathic non-proteinuric hematuria. The effect of biopsy on therapy in renal disease. Arch Intern Med. Clin Nephrol. Hypertriglyceridaemia and hyperuricaemia are risk factors for progression of IgA nephropathy.
Nephrol Dial Transplant. If possible, measurement of plasma concentrations of methylmalonic acid, methylcitrate, free and total carnitine, and an acylcarnitine profile to document propionylcarnitine C3 species concentration. Measurement of serum vitamin B 12 concentration to determine if a nutritional deficiency is present in the patient and possibly the mother in newborns.
Treatment of Manifestations No consensus exists among various metabolic centers regarding treatment of acute and chronic complications of methylmalonic acidemia. Stabilization of critically ill individuals Volume replacement with isotonic solutions. All IV solutions should contain glucose, preferably D 10 or D If hyperglycemia develops, an insulin infusion may be needed. The total base deficit should be followed serially with repeat electrolyte and venous or arterial blood gas measurements and corrected by hydration and bicarbonate replacement, as needed [ Baumgartner et al ].
Adequate kcals must be delivered. Central or peripheral total parenteral nutrition TPN , which typically contains glucose and amino acids, and in some instances, lipids, may be required. Total protein administration is usually completely withdrawn for no more than hours and reinstated gradually depending on the patient's acid-base balance and remaining test values, including ammonia, lactic acid, and plasma amino acids among others. Dietary protein should be reintroduced enterally as soon as is feasible given the clinical scenario and may need to be further augmented with TPN.
Nasograstric or orogastric feeding should be strongly considered so that enteral feedings can be reintroduced without delay. NCG allosterically activates CPS1 carbamyl phosphate synthetase 1 , the first step of the urea cycle. It has been effective in normalizing the blood ammonia concentration in patients with a deficiency of NAGS N-acetylglutamate synthase and can also benefit some patients with propionic and possibly methylmalonic acidemia [ Tuchman et al , Ah Mew et al ].
The underlying biochemical parameters and the frequency of metabolic decompensation improved significantly in individuals undergoing liver transplantation despite persistent metabolic abnormalities [ Nyhan et al , Kaplan et al , Niemi et al ], probably as a result of increased extrahepatorenal methylmalonic acid production primarily from the skeletal muscle [ Chandler et al ]. Following liver transplantation, some individuals continued to have progressive renal failure as well as high CSF concentrations of methylmalonic acid [ Nyhan et al , Kaplan et al ]. Neurologic complications post-transplant, including globus pallidus injuries [ Chakrapani et al , Cosson et al , McGuire et al ] suggest that adequate protein restriction and supportive care should be continued after the transplantation.
Earlier transplantation particularly for individuals with mut 0 who are very fragile is gaining support as surgery techniques and outcomes improve [ Niemi et al , Spada et al ]. The choice of the kind and timing of the indicated transplant procedure remains challenging for families and treating physicians [ Sloan et al ]. In the long term, the details regarding development of renal disease, optic nerve atrophy, and neurologic complications will be most important.
Prevention of Secondary Complications Frequent monitoring of plasma amino acids is necessary to avoid deficiencies of essential amino acids particularly isoleucine, valine, and methionine as a result of excessive protein restriction and the development of acrodermatitis-enteropathica-like cutaneous lesions in methylmalonic aciduria, as in other organic acidurias glutaric aciduria-I and amino acid disorders maple syrup urine disease [ De Raeve et al ]. Surveillance During the first year of life, infants may need to be evaluated as frequently as every week. The following should be monitored on a regular six-month to one-year basis or more frequently if the patient is unstable and requires frequent changes in management: Plasma amino acids.
Supplementation with the individual propiogenic amino acids valine and isoleucine, as they directly increase the toxic metabolite load in patients with disordered propionate oxidation [ Nyhan et al , Hauser et al , Manoli et al b ]. Evaluation of Relatives at Risk Depending on the genotype and phenotype of the proband , evaluation of sibs at risk should be performed using biochemical testing with treatment instituted as soon as possible if a sib is affected.
Pregnancy Management Oral and intramuscular vitamin B 12 has been administered to women pregnant with a fetus with vitamin B 12 -responsive MMA, resulting in decreased maternal MMA urine output [ Ampola et al , van der Meer et al ]. Therapies Under Investigation Carefully designed clinical studies are required to evaluate the efficacy of antioxidant regimens in patients with MMA.
Genetic Counseling Genetic counseling is the process of providing individuals and families with information on the nature, inheritance, and implications of genetic disorders to help them make informed medical and personal decisions. Mode of Inheritance Isolated methylmalonic acidemia complete or partial deficiency of the enzyme methylmalonyl-CoA mutase; defect in transport or synthesis of the methylmalonyl-CoA mutase cofactor, adenosyl-cobalamin; and deficiency of the enzyme methylmalonyl-CoA epimerase is inherited in an autosomal recessive manner.
Related Genetic Counseling Issues See Management, Evaluation of Relatives at Risk for information on testing at-risk relatives for the purpose of early diagnosis and treatment. Family planning The optimal time for determination of genetic risk, clarification of carrier status, and discussion of the availability of prenatal testing is before pregnancy.
It is appropriate to offer genetic counseling including discussion of potential risks to offspring and reproductive options to young adults who are affected , are carriers, or are at risk of being carriers. Note: Due to the limited availability and longer turnaround time for cellular biochemical assays, the preferred method for prenatal diagnosis is molecular genetic testing. The use of fetal cell-free DNA in maternal plasma [ Gu et al ].
Biochemical testing. Historically both amniotic fluid measurements and cellular biochemical assays were used:. Amniotic fluid analysis of methylmalonic acid. The absolute positive predictive and negative predictive values of metabolite analysis only have yet to be determined. Elevation of metabolites below the range of affected fetuses can indicate a heterozygous status and should therefore be followed by confirmatory testing in cell studies.
Incorporation of 14 C propionate and complementation assay of cultured fetal cells obtained by amniocentesis usually performed at approximately 15 to 18 weeks' gestation or chorionic villus sampling CVS at approximately ten to 12 weeks' gestation. Studies on chorionic villus cells can be false negative and should be followed up by studies on cultured amniocytes [ Morel et al ].
Confirmation of the diagnosis by the same assay in an affected family member must be obtained before prenatal testing can be performed. Note: For pregnant women not interested in pursuing prenatal diagnosis by amniocentesis or CVS, a urine organic acid test may be helpful since women carrying an affected fetus have been shown to excrete MMA in their urine [ Ampola et al , van der Meer et al ]. My46 Trait Profile. Methylmalonic acidemia.
Table A. Isolated Methylmalonic Acidemia: Genes and Databases. Table B. Table 3. Trp54Ter c. Leu89Pro c. Gln95Ter c. GlnTer c. GlyArg c. LeuTer c. GlyGlu c. ArgTer c. ArgGln c. Table 4. AlaThr c. ArgCys c. ArgHis c. ArgTrp c. TyrCys c. Table 5. Gln18Ter mut 0 c. Arg31Ter mut 0 c. Arg93His mut 0 c. Pro95Arg mut 0 c.
TrpArg mut 0 c. ArgCys mut 0 c. PheSer mut 0 c. AlaGlu mut 0 c. GlyArg mut 0 c. GlySer mut 0 c. AsnTyr mut 0 c. GlyVal mut 0 c. ArgHis mut 0 c. GlyAsp mut 0 c.
GlyArg mut — c. TyrCys mut — c. TyrAsn mut — c. AsnSer mut 0 c. LeuPro mut 0 c. LeuArg mut — c. ArgTrp mut — c. MetLys mut — c. Table 6. Lys60Gln c.
Statistics LESSON 8 ANALYSIS OF TIME SERIES
Table 7. Leu21IlefsTer2 Leu20fsTer21 c. Arg45GlyfsTer15 c. Arg54Ter c. Asn77GlufsTer5 c. CysMetfsTer10 ThrfsTer Variant designation that does not conform to current naming conventions. Isodisomy of chromosome 6 in a newborn with methylmalonic acidemia and agenesis of pancreatic beta cells causing diabetes mellitus. J Clin Invest. NY, a new frequent mutation among mut o forms of methylmalonic acidemia in Caucasian patients.
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Eur J Hum Genet. Molecular basis of methylmalonyl-CoA mutase apoenzyme defect in 40 European patients affected by mut o and mut- forms of methylmalonic acidemia: identification of 29 novel mutations in the MUT gene. Hum Mutat. A common mutation among blacks with mut- methylmalonic aciduria. N-carbamylglutamate augments ureagenesis and reduces ammonia and glutamine in propionic acidemia. Combined malonic and methylmalonic aciduria: exome sequencing reveals mutations in the ACSF3 gene in patients with a non-classic phenotype.
J Med Genet. Growth hormone deficiency associated with methylmalonic acidemia. J Pediatr Endocrinol Metab. Prenatal therapy of a patient with vitamin-Bresponsive methylmalonic acidemia. N Engl J Med. Inherited disorders affecting mitochondrial function are associated with glutathione deficiency and hypocitrullinemia. Use of human somatotrophin in the treatment of a patient with methylmalonic aciduria. Eur J Pediatr. MRI characteristics of globus pallidus infarcts in isolated methylmalonic acidemia. Baumgarter ER, Viardot C. Long-term follow-up of 77 patients with isolated methylmalonic acidaemia.
J Inherit Metab Dis. Proposed guidelines for the diagnosis and management of methylmalonic and propionic acidemia. Orphanet J Rare Dis. Renal transplantation in 4 patients with methylmalonic aciduria: a cell therapy for metabolic disease. Mol Genet Metab. Malonyl coenzyme A decarboxylase deficiency. Liver-directed recombinant adeno-associated viral gene delivery rescues a lethal mouse model of methylmalonic acidemia and provides long-term phenotypic correction. Hum Gene Ther. SUCLA2 mutations are associated with mild methylmalonic aciduria, Leigh-like encephalomyopathy, dystonia and deafness.
Celiker MY, Chawla A. Congenital B12 deficiency following maternal gastric bypass. J Perinatol. Rapid diagnosis of methylmalonic and propionic acidemias: quantitative tandem mass spectrometric analysis of propionylcarnitine in filter-paper blood specimens obtained from newborns. Clin Chem. Metabolic stroke in methylmalonic acidemia five years after liver transplantation. J Pediatr. Molecular characterization of methylmalonate semialdehyde dehydrogenase deficiency. Hepatoblastoma in a patient with methylmalonic aciduria. Am J Med Genet A.
Metabolic phenotype of methylmalonic acidemia in mice and humans: the role of skeletal muscle. BMC Med Genet. Adenovirus-mediated gene delivery rescues a neonatal lethal murine model of mut 0 methylmalonic acidemia. Long-term rescue of a lethal murine model of methylmalonic acidemia using adeno-associated viral gene therapy. Mol Ther.
Mitochondrial dysfunction in mut methylmalonic acidemia. Metabolic disorders mimicking Reye's syndrome. J Formos Med Assoc. Lethal late onset cblB methylmalonic aciduria. Crit Care Med. Renal transplantation in a boy with methylmalonic acidaemia. Nat Genet. Gene identification for the cblD defect of vitamin B12 metabolism. Renal transplantation in a year-old girl with vitamin Bresponsive cblA-type methylmalonic acidaemia.
Pediatr Nephrol. Massachusetts Metabolic Disorders Screening Program. Methylmalonic aciduria. Cloning and expression of a mutant methylmalonyl coenzyme A mutase with altered cobalamin affinity that causes mut- methylmalonic aciduria. Clustering of mutations in methylmalonyl CoA mutase associated with mut- methylmalonic acidemia. Am J Hum Genet. Renal tubular dysfunction in methylmalonic acidaemia. Methylmalonic and propionic acidaemias: management and outcome.
Multiple OXPHOS deficiency in the liver, kidney, heart and skeletal muscle of patients with methylmalonic aciduria and propionic aciduria. Pediatr Res. Acrodermatitis enteropathica-like cutaneous lesions in organic aciduria. Successful pregnancy in a woman with mut- methylmalonic acidaemia.
National academy of clinical biochemistry laboratory medicine practice guidelines: follow-up testing for metabolic disease identified by expanded newborn screening using tandem mass spectrometry; executive summary. Identification of the gene responsible for the cblB complementation group of vitamin Bdependent methylmalonic aciduria. Hum Mol Genet.
Identification of the gene responsible for the cblA complementation group of vitamin Bresponsive methylmalonic acidemia based on analysis of prokaryotic gene arrangements. Benign methylmalonic acidemia in a sibship with distal renal tubular acidosis. Disorders of propionate and methylmalonate metabolism. Functional characterization and categorization of missense mutations that cause methylmalonyl-CoA mutase MUT deficiency.
Causes and diagnostic approach to methylmalonic acidurias. Crystal structures of malonyl-coenzyme A decarboxylase provide insights into its catalytic mechanism and disease-causing mutations. Methylmalonic aciduria without vitamin B12 deficiency in an adult sibship. Nutritional vitamin B12 deficiency in a breastfed infant following maternal gastric bypass. Pediatr Hematol Oncol. Noninvasive prenatal diagnosis in a fetus at risk for methylmalonic acidemia.
Genet Med. Severe neutropenia in an infant with methylmalonic acidemia. Bol Asoc Med P R. Looking beyond the basal ganglia: the spectrum of MRI changes in methylmalonic acidaemia. Variable dietary management of methylmalonic acidemia: metabolic and energetic correlations. Am J Clin Nutr. Acute extrapyramidal syndrome in methylmalonic acidemia: "metabolic stroke" involving the globus pallidus.
Long-term outcome in methylmalonic acidurias is influenced by the underlying defect mut0, mut-, cblA, cblB. Living-related liver transplantation for methylmalonic acidemia: report of one case. Acta Paediatr Taiwan. Crystal structure and mutagenesis of the metallochaperone MeaB: insight into the causes of methylmalonic aciduria. J Biol Chem. Methylmalonic aciduria and propionic acidaemia studied by proton nuclear magnetic resonance spectroscopy. Clin Chim Acta. Inhibition of bone marrow stem cell growth in vitro by methylmalonic acid: a mechanism for pancytopenia in a patient with methylmalonic acidemia.
Expression and kinetic characterization of methylmalonyl-CoA mutase from patients with the mut- phenotype: evidence for naturally occurring interallelic complementation. Pancreatitis in patients with organic acidemias. Liver transplantation is not curative for methylmalonic acidopathy caused by methylmalonyl-CoA mutase deficiency. Bilateral central retinal artery occlusions in an infant with hyperhomocysteinemia. Current role of liver transplantation for methylmalonic acidemia: a review of the literature.
Pediatr Transplant. Long-term survival after liver transplantation in children with metabolic disorders. The phenotypic spectrum of organic acidurias and urea cycle disorders. Part 1: the initial presentation. Garcia Cazorla A. Part 2: the evolving clinical phenotype. Bilateral lucency of the globus pallidus complicating methylmalonic acidemia. Ann Neurol. Korotkova N, Lidstrom ME. MeaB is a component of the methylmalonyl-CoA mutase complex required for protection of the enzyme from inactivation.
Renal growth in isolated methylmalonic acidemia. Delineating the spectrum of impairments, disabilities, and rehabilitation needs in methylmalonic acidemia MMA. Propofol administration in patients with methylmalonic acidemia and intracellular cobalamin metabolism disorders: a review of theoretical concerns and clinical experiences in 28 patients. Benign methylmalonic aciduria.
Mutations in mut methylmalonic acidemia: clinical and enzymatic correlations. J Mol Biol. Mutation and biochemical analysis of 19 probands with mut0 and 13 with mut- methylmalonic aciduria: identification of seven novel mutations. Leonard JV. Stable isotope studies in propionic and methylmalonic acidaemia.
The impact of screening for propionic and methylmalonic acidaemia. Mutation and biochemical analysis of patients belonging to the cblB complementation class of vitamin Bdependent methylmalonic aciduria.
Review: An Isolated Range (Range #5) by Andrew Grey
Newborn screening for methylmalonic acidurias--optimization by statistical parameter combination. Renal transplant in methylmalonic acidemia: could it be the best option? Report on a case at 10 years and review of the literature. Methylmalonic acidemia and kidney transplantation.
Kidney transplantation in a girl with methylmalonic acidemia and end stage renal failure. MacFarland S, Hartung H. Pancytopenia in a patient with methylmalonic acidemia. A critical reappraisal of dietary practices in methylmalonic acidemia raises concerns about the safety of medical foods. Part 2: cobalamin C deficiency. Part 1: isolated methylmalonic acidemias. Targeting proximal tubule mitochondrial dysfunction attenuates the renal disease of methylmalonic acidemia. Neonatal vitamin B12 deficiency secondary to maternal subclinical pernicious anemia: identification by expanded newborn screening.
Mutations in ALDH6A1 encoding methylmalonate semialdehyde dehydrogenase are associated with dysmyelination and transient methylmalonic aciduria.