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           Search results for: Human Luteinizing Hormone (LH) ELISA Kit   

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#28299766   2017/03/16 Save this To Up

Increased Level of c-kit in Semen of Infertile Patients with Varicocele.

Varicocele is the most common risk factor for male infertility, however, not all males with varicocele experience infertility. In fact, most patients with varicocele have normal spermatogenesis. The molecular mechanism of varicocele-associated infertility is yet to be completely understood. The aim of this study is to assess the association of a number of fertility regulatory factors on varicocele associated infertility and to throw light on the mechanism of varicocele-associated infertility.

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#26156851   2015/12/16 Save this To Up

Serum Stem Cell Factor Assay in Elderly Poor Responder Patients Undergoing IVF: A New Biomarker to Customize Follicle Aspiration Cycle by Cycle.

In humans, stem cell factor (SCF), produced during follicular phase, may reflect a successful stimulation and oocyte maturation and so it may be a predictor of in vitro fertilization (IVF) outcome. An observational cohort study was conducted on 37 poor responders scheduled for fresh nondonor IVF/intracytoplasmic sperm injection treatment with standard controlled ovarian stimulation (COS) using recombinant follicle-stimulating hormone (rFSH; S-COS group). A total of 35 women received a second treatment using both rFSH and recombinant luteinizing hormone (rLH; LH-COS group). From 144 samples collected at pickup day, serum concentration of SCF (s-SCF) and follicular levels of SCF (f-SCF) were measured by enzyme-linked immunosorbent assay (ELISA) kit. No differences were observed between the 2 protocols in terms of both f-SCF and s-SCF levels. The comparison between f-SCF and s-SCF levels showed a strong linear correlation. The comparison between s-SCF levels and clinical outcomes showed a statistically significant correlation between both the number of metaphase II (MII) oocytes retrieved and the embryos obtained after fertilization. Cases with at least 3 MII oocytes showed s-SCF values >800 pg/mL, 2 MII oocytes >600 pg/mL, and 1 MII oocytes >400 pg/mL. In 100% of cases with s-SCF <400 pg/mL, no MII oocytes were recovered. All 5 pregnancies occurred in patients with s-SCF values >1000 pg/mL. The introduction of s-SCF assay in the management of poor-responder patients may contribute to solving the dilemma of whether to cancel or proceed with the stimulation cycle.

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Cell Meter™ Fluorimetri Cell Meter™ Fluorimetri Cell Meter™ Fluorimetri Cell Meter™ Fluorimetri Cell cycle antibody array Cell Cycle Control Phosph Cell Cycle Phospho-Specif Macrophage Colony Stimula Macrophage Colony Stimula cell cycle progression 2 Cell Meter™ Intracellul GLP 1 ELISA Kit, Rat Gluc

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#23443775   2013/02/27 Save this To Up

[Estimation of ovarian response using multiple predictors of ovarian reserve in women undergoing in vitro fertilization-embryo transfer].

To analyze the value of ovarian reserve markers for predicting ovarian response in women undergoing in vitro fertilization-embryo transfer.

2039 related Products with: [Estimation of ovarian response using multiple predictors of ovarian reserve in women undergoing in vitro fertilization-embryo transfer].

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#20689356   2010/08/06 Save this To Up

Assessment of di (2-ethylhexyl) phthalate exposure by urinary metabolites as a function of sampling time.

In most DEHP exposure assessment studies, single spot urine sample was used. It could not compare the exposure level among studies. Therefore, we are going to represent the necessity of selection of proper sampling time of spot urine for assessing the environmental DEHP exposure, and the association urinary DEHP metabolites with steroid hormones.

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#9458932   1998/02/27 Save this To Up

Inhibin A concentrations in the sera of young women during and after chemotherapy for lymphoma: correlation with ovarian toxicity.

Inhibin A concentrations in serum may reflect the ovarian granulosa cell compartment. To characterize the correlation between ovarian function after gonadotoxic chemotherapy for Hodgkin's or non-Hodgkin's lymphoma in young women, the immunoreactive inhibin A concentrations in the sera of these patients was measured before, during, and after the gonadotoxic chemotherapy.

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#10920902   2000/10/05 Save this To Up

[Clinical evaluation of enantone in the treatment of prostate cancer].

In order to improve the effect of hormone treatment for prostate cancer, a total of 17 such patients were treated with Enantone(chemical castration) from July 1990 to July 1992.

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#7794847   1995/08/01 Save this To Up

Does early growth delay occur in diabetic pregnancy?

To identify the date of ovulation in pregnant women with Type 1 diabetes in order to assess the validity of the concept of early growth delay.

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#7523479   1994/11/10 Save this To Up

European collaborative study of luteinizing hormone assay: 1. Epitope specificity of luteinizing hormone monoclonal antibodies and surface mapping of pituitary and urinary luteinizing hormone.

This report describes the results of the first part of the collaborative study organized by a working group sponsored by the Community Bureau of Reference of the European Community Commission. The whole study was designed to understand the causes of discrepancy among LH immunoassay methods. In the parent work, we studied the characteristics of 55 monoclonal antibodies to LH which allowed us to establish a detailed map of the antigenic surface of the hormone. In the present report we used this information to interpret the discrepancy in LH concentrations assayed with 12 different methods in 300 sera from subjects with various clinical conditions. The 55 monoclonal antibodies provided by 11 commercial companies were tested in various experiments: the apparent affinity of the antibodies was, generally but not always, higher for LH presented by a second antibody coated to plastic than for LH directly coated to plastic; 26% of the antibodies recognized the alpha subunit, 26% the beta subunit and 48% reacted only with the holomolecule (anti-alpha beta); only 28% of the antibodies were strictly specific for LH. Criss-cross experiments allowed us to distinguish 13 antigenic regions on the surface of LH: 6 were located on the alpha subunit, 3 on the beta subunit and 4 on the holomolecule. The monoclonal antibodies to the alpha beta regions further separated into 12 clusters of reactivity. Accordingly, LH appeared to exhibit at least 21 epitopes. Comparison of the immunoreactivity of various LH preparations indicated that highly purified pituitary LH and immunoaffinity purified urinary LH reacted similarly with the monoclonal antibodies and strongly differed from crude urinary LH. These data indicated that the immunoreactivity of an LH preparation depends mainly upon the degree of purification and not that much upon the origin of the preparation. The epitope specificity of the monoclonal antibodies used in 11 commercially available LH assay kits was also determined: 10 kits used at least one anti-alpha beta monoclonal antibody associated with an anti-beta monoclonal antibody in 7 cases or another anti-alpha beta monoclonal antibody in 3 cases; one kit used an anti-alpha monoclonal antibody associated with an anti-beta monoclonal antibody. None of the kits were strictly identical with regards to the epitope specificity of the monoclonal antibodies used.

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MOUSE ANTI HUMAN LUTEINIZ Luteinizing Hormone (LH) Fish Luteinizing Hormone Human Luteinizing Hormone Luteinizing Hormone Relea Luteinizing Hormone Relea Human Growth Hormone anti Human Growth Hormone anti Human Growth Hormone anti Mouse Anti-Growth Hormone Mouse anti human Growth H Mouse anti human Growth H

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#2105180   1990/03/06 Save this To Up

Quantitative immunoenzymatic assay of human lutropin, with use of a bi-specific monoclonal antibody.

In this immunoenzymatic assay for human lutropin (hLH) we used bi-specific antibodies (BiAbs) obtained from the fusion of two hybridomas producing antibodies to beta-D-galactosidase and hLh. The BiAb complexed with the enzyme beta-D-galactosidase was used as tracer in a double-determinant assay. We compared the assay involving the BiAb (Bi-EIA) with an immunoenzymatic assay (EIA) in which the same capture antibody was used but the tracer was an enzyme-conjugated hLH-specific monoclonal antibody produced by the same parental cell line used to produce the BiAb. The coefficient of correlation (r) between the two assays was 0.979 but the Bi-EIA was more sensitive (detection limits: 0.8 int. units/L for the Bi-EIA, 2.0 int. units/L for the EIA) and more specific (less than 0.04% vs less than 1.2% cross-reactions with human choriogonadotropin). Mean intra- and interassay CVs for the Bi-EIA were 2.9% and 5.9%, respectively. Correlation (r) with an immunoradiometric assay (IRMA, Serono kit) was 0.960, with radioimmunoassay (RIA, Biodata kit) 0.909, and with an enzyme-linked immunosorbent assay (ELISA kit, Specialty Medical Industries Inc.) 0.888, (n = 25). Evidently, bi-specific antibodies can be used successfully in immunoenzymatic assays, and with potentially greater sensitivity and specificity than assay with a traditional antibody-enzyme conjugate.

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MOUSE ANTI HUMAN CD15, Pr MOUSE ANTI HUMAN CD19 RPE MOUSE ANTI HUMAN CD15, Pr Anti C Reactive Protein A MOUSE ANTI BOVINE ROTAVIR Anti AGO2 Human, Monoclon Anti AGO2 Human, Monoclon Anti AGO2 Human, Monoclon Anti AGO2 Human, Monoclon Anti AGO2 Human, Monoclon Anti AGO2 Human, Monoclon Anti Human AGO3, Monoclon

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