• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Insulin gene polymorphism and premature male pattern baldness in
Insulin gene polymorphism and premature male pattern baldness in

... testosterone by the action of the enzyme 5α-reductase. The genes encoding the two forms of 5α-reductase were for some time suspected of involvement in MPB, but we have recently shown that common variants of these genes do not appear to be associated with this disorder [5]. Polycystic ovary syndrome ...
primer on genetic epidemiology
primer on genetic epidemiology

... epidemiology and biostatistics. Genetic epidemiology studies the role of genetic factors in determining health and disease in families and in populations, as well as the interplay of genetic determinants with specific environmental exposures. Morton elegantly defined genetic epidemiology as "a scien ...
Deconstructing the Genome: DNA at High Resolution
Deconstructing the Genome: DNA at High Resolution

... what can go wrong with these genes to generate hemoglobin disorders? Such disorders are the most common genetic diseases in the world and include sickle-cell anemia, which arises from an altered  chain, and thalassemia, which results from decreases in the amount of either - or -chain production. ...
Impact of Tandem Repeats on the Scaling of Nucleotide Sequences
Impact of Tandem Repeats on the Scaling of Nucleotide Sequences

... themselves as tandem repeats. Such repeats are usually approximate repeats adjacent to each other and include microsatellites, minisatellites, CpG islands, and telomeric repeats [Dogett et al., 1992; Toth et al., 2000]. Classical techniques such a Fourier analysis have been used to identify short-te ...
Cutting Edge: DNA Polymerases and Are Dispensable for Ig Gene
Cutting Edge: DNA Polymerases and Are Dispensable for Ig Gene

... shown). In contrast, about half of the mice have a marked depletion of B cells in peripheral lymphoid organs. Indeed, flow cytometric analysis of splenic lymphoid cells showed that, among 20 mice between 4 and 16 wk of age, 10 have a splenic B:T cell ratio between 18 and 28%, while the others have v ...
Genetic analysis of a congenital nephrogenic diabetes insipidus
Genetic analysis of a congenital nephrogenic diabetes insipidus

... test was performed for differentiating central diabetes insipidus and nephrogenic diabetes insipidus. All tests were also done in the proband’s brother because he had the same symptoms as the proband. Urine routine were tested in the proband’s parents, wife and daughter. Informed consent was obtain ...
Screening of a Specific Point Mutation in Tumor Suppressor p53
Screening of a Specific Point Mutation in Tumor Suppressor p53

... geographic region. For this reason, p53 gene was amplified in the exon 7 region including codon 249 known as specific mutation site, using polymerase chain reaction. Amplified products were of 110 base ...
Interphase chromosome profiling (ICP)
Interphase chromosome profiling (ICP)

... X-chromosome in whole or in part, particularly the short arm. Abnormalities of the Ychromosome ranging from the presence of normal XY cells in mosaicism with XO cells to structurally abnormal Y missing the sex determining region have been reported. In the absence of cytogenetically detectable Y- chr ...
Insulins in Diabetic Pregnancy by Dr Sarma
Insulins in Diabetic Pregnancy by Dr Sarma

... Cut-off value > 130 mg/dl identifies 90% women with GDM GCT is elevated, do a diagnostic oral glucose tolerance test www.drsarma.in ...
Insulin in Pregnancy
Insulin in Pregnancy

... Cut-off value > 130 mg/dl identifies 90% women with GDM GCT is elevated, do a diagnostic oral glucose tolerance test www.drsarma.in ...
GenomeWeb Stanford Team Shows How Long Reads Can
GenomeWeb Stanford Team Shows How Long Reads Can

... NEW YORK (GenomeWeb) – Sequencing with long reads can help diagnose rare disease caused by variants that are difficult to identify with shorter reads, according to a recently published study. Researchers from Stanford University's Clinical Genomics Service reported last month in the pre-print server ...
appendix - iii
appendix - iii

... Placenta less than 2.5 cm thick at term is associated with intrauterine growth retardation of the fetus, preeclampsia, prematurity, fetal malformations or trisomy, small for date fetus and neonatal high heamoglobin16,17. ...
Familial nonrandom inactivation linked to the X inactivation
Familial nonrandom inactivation linked to the X inactivation

... sufficient cells expressing the wild-type gene to prevent abnormal bleeding in the female. In rare cases, heterozygous females will manifest the mutation because not enough of their cells are synthesising the normal clotting factor. This can happen in females who have a single X chromosome, or a tra ...
Opposite deletions/duplications of the X chromosome: two
Opposite deletions/duplications of the X chromosome: two

... (Figure 1 b,d) and 46,X,deldup(X)(Xpter- > Xq21.1–Xp11.23> qter) for case 4. First type rearrangements, with Xq duplication and Xp deletion, are herein referred to as class I and those of cases 3 and 4 as class II. Both class I and class II rearrangements share the same breakpoint at Xp (Table 1) be ...
Manual: FullVelocity(TM) SYBR® Green QPCR - Gene X
Manual: FullVelocity(TM) SYBR® Green QPCR - Gene X

... reagents and small differences in reaction components or cycling conditions. Quantitative assessments based on endpoint fluorescence values (a single reading taken at the end of the PCR reaction) are inherently inaccurate because endpoint values can be greatly influenced by these factors. Figure 1 s ...
Corneal dystrophies in Japan
Corneal dystrophies in Japan

... (GCD), Avellino CD (ACD), lattice CD (LCD), and ReisBücklers CD (RBCD) were mapped to the long arm of chromosome 5 (5q31). These four diseases were shown, in a Caucasian series, to result from different missense mutations in the TGFBI (BIGH3, keratoepithelin) gene. The same mutations were also detec ...
Leukaemia Section +21 or trisomy 21 Atlas of Genetics and Cytogenetics
Leukaemia Section +21 or trisomy 21 Atlas of Genetics and Cytogenetics

... Acquired trisomy 21 is not to be confused with constitutional trisomy 21 (Down syndrome, DS) which is a factor of predisposition to childhood acute leukemia but whose significance and clinical context are quite different. ...
Paper I- Discussion Points
Paper I- Discussion Points

... express thymidine kinase, which is required to convert the Br-dU into its triphosphate form that can be utilized by DNA polymerase. At various times along the cell cycle, we take cell aliquots and shear the DNA into fragment of approximately 400 to 500 base pairs. We then add antibody to Br-dU that ...
11/01/11 Mapping: By recombinant frequency. -
11/01/11 Mapping: By recombinant frequency. -

Click here to presentation
Click here to presentation

Radiation Hybrid Mapping: A Somatic Cell Genetic Method for
Radiation Hybrid Mapping: A Somatic Cell Genetic Method for

... use of RH mapping, in conjunction with PFGE, to construct a highresolution map of the proximal 20 Mb of the long arm of human chromosome 21. Theory and practice o f radiation hybrid mapping. In this method, which is based on earlier studies by Goss and Harris (6), a high dose of x-rays is used to br ...
Chromosome Band 1p36 Contains a Putative Tumor
Chromosome Band 1p36 Contains a Putative Tumor

... samples, and we did not find occult hemizygosity. Allelic loss on 1p was observed in 14 of the 30 cases of BC or AP (47%). The most frequent LOH (8 of 15 informative cases; 53%) was observed at the D1S468 locus on chromosome band 1p36. Figure 1 shows examples of allelic loss. The lower allele was de ...
Pregnancy and Inflammatory Bowel Disease
Pregnancy and Inflammatory Bowel Disease

Newsletter February 2016
Newsletter February 2016

... or cream, it cannot be seen because it is only expressed on eumelanin (black, brown, blue, lilac) but not on pheomelanin, the only way to find out if your dog has merle is by testing. The second type of hidden merle is called cryptic merle which is a short version of merle with very small merling eff ...
Ensuring access to primary, secondary, and tertiary prevention
Ensuring access to primary, secondary, and tertiary prevention

... reduction in the risk of an Apgar score <7 at 5 min and in length of stay in a special care baby unit (SCBU) >7 days. Improves maternal outcome. May permit prolongation of the pregnancy and thereby improve fetal maturity. Acute falls in maternal systemic blood pressure can result in fetal compromise ...
< 1 ... 45 46 47 48 49 50 51 52 53 ... 494 >

Cell-free fetal DNA

Cell-free fetal DNA (cffDNA) is fetal DNA circulating freely in the maternal blood stream. It can be sampled by venipuncture on the mother. Analysis of cffDNA provides a method of non-invasive prenatal diagnosis.cffDNA originates from the trophoblasts making up the placenta. It is estimated that 2-6% of the DNA in the maternal blood is fetal in origin. The fetal DNA is fragmented and makes its way into the maternal bloodstream via shedding of the placental microparticles into the maternal bloodstream (figure 1). Studies have shown that cffDNA can first be observed as early as 7 weeks gestation, and the amount of cffDNA increases as the pregnancy progresses. cffDNA diminishes quickly after the birth of the baby, so that it is no longer detectable in the maternal blood approximately 2 hours after birth. cffDNA is significantly smaller than the maternal DNA in the bloodstream, with fragments approximately 200bp in size. Many protocols to extract the fetal DNA from the maternal plasma use its size to distinguish it from the maternal DNA.Studies have looked at, and some even optimized, protocols for testing non-compatible RhD factors, sex determination for X-linked genetic disorders and testing for single gene disorders. Current studies are now looking at determining aneuploidies in the developing fetus. These protocols can be done earlier than the current prenatal testing methods, and have no risk of spontaneous abortion, unlike current prenatal testing methods. Non-invasive prenatal diagnosis (NIPD) has been implemented in the UK and parts of the US; it has clear benefits above the standard tests of chorionic villi sample (CVS) and amniocentesis which have procedure-related miscarriage risks of about 1 in 100 pregnancies and 1 in 200 pregnancies, respectively.As a method of prenatal diagnosis, cell-free fetal DNA techniques share the same ethical and practical issues, such as the possibility of prenatal sex discernment and sex selection.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report