Hormonal, pituitary magnetic resonance, LHX4 and HESX1 evaluation in patients with hypopituitarism and ectopic posterior pituitary lobe

Summary Objective  LHX4 and HESX1 are important in early stages of pituitary development and their mutations can be associated with an ectopic posterior lobe (EPL) in the pituitary of patients with hypopituitarism. The EPL can be located at the median eminence or at the path of the pituitary stalk....

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Veröffentlicht in:Clinical endocrinology (Oxford) 2007-01, Vol.66 (1), p.95-102
Hauptverfasser: Melo, Maria Edna, Marui, Suemi, Carvalho, Luciani Renata, Arnhold, Ivo Jorge Prado, Leite, Claudia Costa, Mendonça, Berenice Bilharinho, Knoepfelmacher, Mirta
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container_end_page 102
container_issue 1
container_start_page 95
container_title Clinical endocrinology (Oxford)
container_volume 66
creator Melo, Maria Edna
Marui, Suemi
Carvalho, Luciani Renata
Arnhold, Ivo Jorge Prado
Leite, Claudia Costa
Mendonça, Berenice Bilharinho
Knoepfelmacher, Mirta
description Summary Objective  LHX4 and HESX1 are important in early stages of pituitary development and their mutations can be associated with an ectopic posterior lobe (EPL) in the pituitary of patients with hypopituitarism. The EPL can be located at the median eminence or at the path of the pituitary stalk. The aim of this study was to analyse LHX4 and HESX1 and characterize the hormonal deficiency profiles, establishing relationships with magnetic resonance imaging (MRI) findings in these patients. Patients and design  Sixty‐two patients with hypopituitarism associated with EPL were submitted to evaluation of pituitary function, analysis of MRI with EPL location and molecular analysis of LHX4 and HESX1 using polymerase chain reaction (PCR), digestion with restriction enzyme and automatic sequencing. Results  Forty‐two patients had a nonvisualized pituitary stalk (NPS), and 20 a visualized pituitary stalk (VPS). Most patients (95%) with NPS had combined pituitary hormone deficiency (CPHD), with ACTH deficiency in 85%. In patients with VPS, CPHD was found in 50% and ACTH deficiency occurred in only 20%. The frequency of the location of EPL was similar in patients with VPS and NPS: 35% at median eminence and 65% at the path of the stalk. No mutations in LHX4 and HESX1 were identified. Three new polymorphisms in LHX4 were found. Conclusions  ACTH deficiency is frequent in patients with hypopituitarism and NPS (85%), the location of EPL at the median eminence was not predictive of the hormonal profile [isolated GH deficiency (IGHD) or CPHD], and LHX4 and HESX1 genes mutations remain rare causes of hypopituitarism associated with EPL.
doi_str_mv 10.1111/j.1365-2265.2006.02692.x
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The EPL can be located at the median eminence or at the path of the pituitary stalk. The aim of this study was to analyse LHX4 and HESX1 and characterize the hormonal deficiency profiles, establishing relationships with magnetic resonance imaging (MRI) findings in these patients. Patients and design  Sixty‐two patients with hypopituitarism associated with EPL were submitted to evaluation of pituitary function, analysis of MRI with EPL location and molecular analysis of LHX4 and HESX1 using polymerase chain reaction (PCR), digestion with restriction enzyme and automatic sequencing. Results  Forty‐two patients had a nonvisualized pituitary stalk (NPS), and 20 a visualized pituitary stalk (VPS). Most patients (95%) with NPS had combined pituitary hormone deficiency (CPHD), with ACTH deficiency in 85%. In patients with VPS, CPHD was found in 50% and ACTH deficiency occurred in only 20%. The frequency of the location of EPL was similar in patients with VPS and NPS: 35% at median eminence and 65% at the path of the stalk. No mutations in LHX4 and HESX1 were identified. Three new polymorphisms in LHX4 were found. Conclusions  ACTH deficiency is frequent in patients with hypopituitarism and NPS (85%), the location of EPL at the median eminence was not predictive of the hormonal profile [isolated GH deficiency (IGHD) or CPHD], and LHX4 and HESX1 genes mutations remain rare causes of hypopituitarism associated with EPL.</description><identifier>ISSN: 0300-0664</identifier><identifier>EISSN: 1365-2265</identifier><identifier>DOI: 10.1111/j.1365-2265.2006.02692.x</identifier><identifier>PMID: 17201807</identifier><identifier>CODEN: CLECAP</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>Adolescent ; Adrenocorticotropic Hormone - blood ; Adult ; Alleles ; Biological and medical sciences ; Chi-Square Distribution ; Child ; Child, Preschool ; Choristoma - blood ; Choristoma - pathology ; Endocrinopathies ; Female ; Fundamental and applied biological sciences. 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The EPL can be located at the median eminence or at the path of the pituitary stalk. The aim of this study was to analyse LHX4 and HESX1 and characterize the hormonal deficiency profiles, establishing relationships with magnetic resonance imaging (MRI) findings in these patients. Patients and design  Sixty‐two patients with hypopituitarism associated with EPL were submitted to evaluation of pituitary function, analysis of MRI with EPL location and molecular analysis of LHX4 and HESX1 using polymerase chain reaction (PCR), digestion with restriction enzyme and automatic sequencing. Results  Forty‐two patients had a nonvisualized pituitary stalk (NPS), and 20 a visualized pituitary stalk (VPS). Most patients (95%) with NPS had combined pituitary hormone deficiency (CPHD), with ACTH deficiency in 85%. In patients with VPS, CPHD was found in 50% and ACTH deficiency occurred in only 20%. The frequency of the location of EPL was similar in patients with VPS and NPS: 35% at median eminence and 65% at the path of the stalk. No mutations in LHX4 and HESX1 were identified. Three new polymorphisms in LHX4 were found. Conclusions  ACTH deficiency is frequent in patients with hypopituitarism and NPS (85%), the location of EPL at the median eminence was not predictive of the hormonal profile [isolated GH deficiency (IGHD) or CPHD], and LHX4 and HESX1 genes mutations remain rare causes of hypopituitarism associated with EPL.</description><subject>Adolescent</subject><subject>Adrenocorticotropic Hormone - blood</subject><subject>Adult</subject><subject>Alleles</subject><subject>Biological and medical sciences</subject><subject>Chi-Square Distribution</subject><subject>Child</subject><subject>Child, Preschool</subject><subject>Choristoma - blood</subject><subject>Choristoma - pathology</subject><subject>Endocrinopathies</subject><subject>Female</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Gene Expression</subject><subject>Homeodomain Proteins - genetics</subject><subject>Humans</subject><subject>Hypopituitarism - blood</subject><subject>Hypopituitarism - pathology</subject><subject>Hypothalamus. Hypophysis. Epiphysis (diseases)</subject><subject>LIM-Homeodomain Proteins</subject><subject>Magnetic Resonance Imaging</subject><subject>Male</subject><subject>Median Eminence - pathology</subject><subject>Medical sciences</subject><subject>Non tumoral diseases. Target tissue resistance. 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Psychology</topic><topic>Gene Expression</topic><topic>Homeodomain Proteins - genetics</topic><topic>Humans</topic><topic>Hypopituitarism - blood</topic><topic>Hypopituitarism - pathology</topic><topic>Hypothalamus. Hypophysis. Epiphysis (diseases)</topic><topic>LIM-Homeodomain Proteins</topic><topic>Magnetic Resonance Imaging</topic><topic>Male</topic><topic>Median Eminence - pathology</topic><topic>Medical sciences</topic><topic>Non tumoral diseases. Target tissue resistance. Benign neoplasms</topic><topic>Pituitary Gland - pathology</topic><topic>Pituitary Gland, Posterior</topic><topic>Pituitary Hormones - blood</topic><topic>Polymerase Chain Reaction - methods</topic><topic>Polymorphism, Genetic</topic><topic>Pregnancy</topic><topic>Transcription Factors - genetics</topic><topic>Vertebrates: endocrinology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Melo, Maria Edna</creatorcontrib><creatorcontrib>Marui, Suemi</creatorcontrib><creatorcontrib>Carvalho, Luciani Renata</creatorcontrib><creatorcontrib>Arnhold, Ivo Jorge Prado</creatorcontrib><creatorcontrib>Leite, Claudia Costa</creatorcontrib><creatorcontrib>Mendonça, Berenice Bilharinho</creatorcontrib><creatorcontrib>Knoepfelmacher, Mirta</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Clinical endocrinology (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Melo, Maria Edna</au><au>Marui, Suemi</au><au>Carvalho, Luciani Renata</au><au>Arnhold, Ivo Jorge Prado</au><au>Leite, Claudia Costa</au><au>Mendonça, Berenice Bilharinho</au><au>Knoepfelmacher, Mirta</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hormonal, pituitary magnetic resonance, LHX4 and HESX1 evaluation in patients with hypopituitarism and ectopic posterior pituitary lobe</atitle><jtitle>Clinical endocrinology (Oxford)</jtitle><addtitle>Clin Endocrinol (Oxf)</addtitle><date>2007-01</date><risdate>2007</risdate><volume>66</volume><issue>1</issue><spage>95</spage><epage>102</epage><pages>95-102</pages><issn>0300-0664</issn><eissn>1365-2265</eissn><coden>CLECAP</coden><abstract>Summary Objective  LHX4 and HESX1 are important in early stages of pituitary development and their mutations can be associated with an ectopic posterior lobe (EPL) in the pituitary of patients with hypopituitarism. The EPL can be located at the median eminence or at the path of the pituitary stalk. The aim of this study was to analyse LHX4 and HESX1 and characterize the hormonal deficiency profiles, establishing relationships with magnetic resonance imaging (MRI) findings in these patients. Patients and design  Sixty‐two patients with hypopituitarism associated with EPL were submitted to evaluation of pituitary function, analysis of MRI with EPL location and molecular analysis of LHX4 and HESX1 using polymerase chain reaction (PCR), digestion with restriction enzyme and automatic sequencing. Results  Forty‐two patients had a nonvisualized pituitary stalk (NPS), and 20 a visualized pituitary stalk (VPS). Most patients (95%) with NPS had combined pituitary hormone deficiency (CPHD), with ACTH deficiency in 85%. In patients with VPS, CPHD was found in 50% and ACTH deficiency occurred in only 20%. The frequency of the location of EPL was similar in patients with VPS and NPS: 35% at median eminence and 65% at the path of the stalk. No mutations in LHX4 and HESX1 were identified. Three new polymorphisms in LHX4 were found. Conclusions  ACTH deficiency is frequent in patients with hypopituitarism and NPS (85%), the location of EPL at the median eminence was not predictive of the hormonal profile [isolated GH deficiency (IGHD) or CPHD], and LHX4 and HESX1 genes mutations remain rare causes of hypopituitarism associated with EPL.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><pmid>17201807</pmid><doi>10.1111/j.1365-2265.2006.02692.x</doi><tpages>8</tpages></addata></record>
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source Wiley Online Library - AutoHoldings Journals; MEDLINE
subjects Adolescent
Adrenocorticotropic Hormone - blood
Adult
Alleles
Biological and medical sciences
Chi-Square Distribution
Child
Child, Preschool
Choristoma - blood
Choristoma - pathology
Endocrinopathies
Female
Fundamental and applied biological sciences. Psychology
Gene Expression
Homeodomain Proteins - genetics
Humans
Hypopituitarism - blood
Hypopituitarism - pathology
Hypothalamus. Hypophysis. Epiphysis (diseases)
LIM-Homeodomain Proteins
Magnetic Resonance Imaging
Male
Median Eminence - pathology
Medical sciences
Non tumoral diseases. Target tissue resistance. Benign neoplasms
Pituitary Gland - pathology
Pituitary Gland, Posterior
Pituitary Hormones - blood
Polymerase Chain Reaction - methods
Polymorphism, Genetic
Pregnancy
Transcription Factors - genetics
Vertebrates: endocrinology
title Hormonal, pituitary magnetic resonance, LHX4 and HESX1 evaluation in patients with hypopituitarism and ectopic posterior pituitary lobe
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