Navigation Links
LH IRMA Test

ProductsLH IRMA Test
Company Diagnostic Systems Laboratories, Inc.
Item LH IRMA Test
Features 
Description Luteinizing hormone (LH) is a glycoprotein secreted by the anterior pituitary gland. Like the FSH, hCG and TSH, the intact LH molecule is a noncovalently-linked dimer containing alpha- and beta-subunits. These glycoproteins all have homologous alpha-subunits, however each hormone has a unique beta-subunit. Both LH and FSH production and secretion are stimulated by gonadotropin-releasing hormone (GnRH) from the hypothalamus. LH binds to specific cell membrane receptors on ovarian theca cells and testicular Leydig cells. In women, LH is responsible for ovulation, stimulation of corpus luteum formation and stimulation of ovarian progesterone synthesis. During ovarian follicular growth, LH acts to stimulate theca cell production of androgens which are aromatized to estrogens in the granulosa cells. In the late follicular phase, the increased amounts of estrogen exert positive feedback on the hypothalamus and pituitary resulting in a GnRH surge and a peak of LH and FSH release [1,2]. The LH surge is followed by rupture of the graafian follicle and ovulation [1,2,3]. During the luteal phase, estrogens and progesterone exert negative feedback on the pituitary, resulting in low levels of LH secretion. In men, LH stimulates production of testosterone by the Leydig cells and acts with FSH and testosterone to stimulate spermatogenesis. The measurement of LH in serum is useful in the diagnosis and treatment of gonadal dysfunction.

  1. Liu JH & Yen SSC. J Clin Endocrinol Metab; 57: 797-802, 1983.
  2. Urban RJ, et al. Endocr Rev; 9: 3-37, 1988.
  3. Filicori M, et al. J Clin Endocrinol Metab; 62: 1136-1144, 1986.
Info Diagnostic Systems Laboratories, Inc.
Customer Service: (800) 231-7970
Web site: http://www.dslabs.com

Related medicine products :

1. D-10 Hemoglobin Testing System with D-10™ Rack Loader
2. Hgb Pro Professional Hemoglobin Testing System
3. B-Hemoglobin Test System
4. Micromat II Hemoglobin A1c Instrument
5. HemoPoint H2 Hemoglobin Measurement System
6. HEMOCUE B-Hemoglobin photometer
7. Lyphochek Hemoglobin A2 Control
8. Lyphochek Hemoglobin A1C Linearity Set
9. DiaSTAT Hemoglobin A1C Analyzer
10. VARIANT II TURBO Hemoglobin Testing System
11. VARIANTnbs Newborn Hemoglobin Screening System
A comprehensive bioresorbable product line comprised of implants and accessories that serve craniomaxillofacial, neurosurgical, and iliac crest reconstruction....
... Major advancement in craniomaxillofacial fixation. Completely resorbable, ... titanium. Today, it is the most thoroughly ... available as LactoSorb SE, with system enhancements ... LactoSorb SEs streamlined delivery system means that ...
1.7/2.2 mm Delta System resorbable implant technology merges science and simplicity for a superior craniomaxillofacial surgery product. The system consists of resorbable bone plates and screws fabric...
PoleStar N-10 is a compact MRI unit that does not require a specially constructed surgery suite. The magnetic field is confined to the volume between the magnet poles and it's immediate neighborhood....
Medicine Products:
(Date:5/6/2016)... ... May 06, 2016 , ... Featured cast and ... unique keynote address at the 2016 Learning Summit , June 12-15, in ... college students. Their stories—of complicated family issues, financial difficulties, and other personal obstacles—are ...
(Date:5/6/2016)... ... May 06, 2016 , ... ... reduce fat areas around the body, is the most popular among body sculpting ... released make perfect sense to cosmetic surgeon Dr. Richard Buckley, medical director of ...
(Date:5/6/2016)... ... May 06, 2016 , ... Canadian author Mark Black is a speaker, author, and ... Heart" around the world … with the help of his publisher Strategic Book Group and ... lay in a hospital bed waiting for a miracle: He needed a heart and double-lung ...
(Date:5/6/2016)... ... May 06, 2016 , ... Few ... which made headlines mostly for its cost despite its potential to wipe out ... surrounding the drug—part of a class called direct-acting antivirals (DAAs)—have created fallout in ...
(Date:5/6/2016)... ... 2016 , ... RowdMap, Inc. co-founder, Joshua Rosenthal, PhD, joins ... Deputy Administrator at Centers for Medicare and Medicaid Services (CMS); Ali Khan, MD, ... Officer at Health Care Service Corporation (Blue Cross and Blue Shield of Illinois, ...
Breaking Medicine News(10 mins):
(Date:5/4/2016)... ALBANY, New York , May 4, 2016 /PRNewswire/ ... published by Transparency Market Research entitled "Brain Computer Interface Market ... Forecast 2016 - 2024," the  global brain computer interface (BCI) ... bn by 2024. The market is estimated to expand ... period from 2016 to 2024. A BCI ...
(Date:5/4/2016)... -- Yissum Research Development Company of ... it had signed an exclusive world-wide licensing and research ... protein degradation and immunomodulatory drugs for cancer and immune ... representing first-in-class therapy for hematologic and solid malignancies. Financial ... The novel technology was developed by Yinon Ben-Neriah ...
(Date:5/4/2016)... , May 4, 2016 ... of the  "Global Acute Ischemic Stroke Market ... to their offering.       (Logo: ... Global Acute Ischemic Stroke Market and Competitive ... Acute Ischemic Stroke pipeline products, Acute Ischemic ...
Breaking Medicine Technology: