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McDonough PG. Unnatural deeds do breed unnatural troubles (Macbeth: Act V, Scene 1). Fertil Steril 2001; 76:1085-6. [PMID: 11704153 DOI: 10.1016/s0015-0282(01)02912-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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McDonough PG. Why can't a man be more like a mouse? Fertil Steril 2001; 76:856-7. [PMID: 11680439 DOI: 10.1016/s0015-0282(01)02078-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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McDonough PG. "You'll know it when you see it" statistics. Fertil Steril 2001; 76:634-5. [PMID: 11570365 DOI: 10.1016/s0015-0282(01)01947-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Layman LC, McDonough PG, Cohen DP, Maddox M, Tho SP, Reindollar RH. Familial gonadotropin-releasing hormone resistance and hypogonadotropic hypogonadism in a family with multiple affected individuals. Fertil Steril 2001; 75:1148-55. [PMID: 11384641 DOI: 10.1016/s0015-0282(01)01782-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To characterize the phenotype of idiopathic hypogonadotropic hypogonadism due to compound heterozygous GnRHR gene mutations (Arg262Gln/Tyr284Cys). DESIGN Retrospective review. SETTING Tertiary medical center. PATIENT(S) Family containing four siblings (three female and one male) with complete idiopathic hypogonadotropic hypogonadism. INTERVENTION(S) Baseline and stimulated laboratory studies. One patient received GnRH treatment and one received human menopausal gonadotropins. MAIN OUTCOME MEASURE(S) Clinical phenotype vs. genotype is assessed by endocrine studies, karyotype, pedigree, and review of pathology slides of ovarian neoplasm. RESULT(S) With GnRH stimulation, two patients with idiopathic hypogonadotropic hypogonadism had maximum LH < 10 mIU/mL, and two others had peak LH > 10 mIU/mL. With repeated GnRH stimulation 24 hours later, gonadotropin levels in all patients were increased. Stimulation of thyroid-releasing hormone and tests for insulin-induced hypoglycemia were normal. One affected patient did not ovulate after GnRH treatment, but her sister ovulated with gonadotropin treatment. Another affected sibling had bilateral oophorectomy for seromucinous cystadenomas, and her hypogonadotropic state remained after castration. The man with idiopathic hypogonadotropic hypogonadism and his unaffected brother had a ring chromosome 21. CONCLUSION(S) All patients with complete idiopathic hypogonadotropic hypogonadism had the same GnRHR mutations, but clinical presentations and endocrinologic responses were heterogeneous. Gonadotropin levels remained low in patients with idiopathic hypogonadotropic hypogonadism after castration, and ring chromosome 21 was present, suggesting that sequences from this chromosome could affect the idiopathic hypogonadotropic hypogonadism phenotype.
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Affiliation(s)
- L C Layman
- Department of Obstetrics and Gynecology, The Medical College of Georgia, Augusta, Georgia 30912-3360, USA.
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McDonough PG. Irreproducible results: good for surgeons, bad for scientists. Fertil Steril 2000; 74:189-90. [PMID: 10907922 DOI: 10.1016/s0015-0282(00)00593-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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McDonough PG. Addendum from Portugal--how about an annotated IFFS surveillance for the new millennium? Fertil Steril 2000; 73:1065. [PMID: 10866512 DOI: 10.1016/s0015-0282(99)00620-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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McDonough PG. The selection of summary measures for ART outcome data-"reveal codes". Fertil Steril 2000; 73:870-2. [PMID: 10787291 DOI: 10.1016/s0015-0282(99)00617-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Abstract
The pituitary gonadotropin follicle stimulating hormone (FSH) interacts with its membrane-bound receptor, to produce biologic effects. Traditional functions of FSH include, follicular development and estradiol production in females and the regulation of Sertoli cell action and spermatogenesis in males. FSHbeta knock-out mice and transgenic mice, serve as models for FSH deficiency and excess, respectively. In addition, mutations of both FSHbeta and FSHR genes have been characterized in humans, although phenotypic effects of the ligand appear to be more profound than those of its receptor. FSH is essential for normal puberty and fertility in females, particularly ovarian follicular development beyond the antral stage. In males, FSH is necessary for normal spermatogenesis and when FSH function is completely absent, infertility occurs. With partial FSH deficiency in males, spermatogenesis is affected, but fertility may still be possible. FSH may also be necessary for normal androgen synthesis in males and females.
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Affiliation(s)
- L C Layman
- Section of Reproductive Endocrinology, Infertility and Genetics, Department of Obstetrics and Gynecology, The Medical College of Georgia, Augusta 30912-3360, USA.
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McDonough PG. Inactivating mutations in the LH receptor-as rare a "a hen with teeth" or as frequent as polycystic ovary syndrome? Fertil Steril 2000; 73:655-6. [PMID: 10733311 DOI: 10.1016/s0015-0282(99)00581-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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McDonough PG. Concluding letter from Robert F. Harrison on the predictive value of serum FSH levels. Fertil Steril 2000; 73:421. [PMID: 10685557 DOI: 10.1016/s0015-0282(99)00503-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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McDonough PG. Exceptions to nature demand a higher level of documentation. Fertil Steril 1999; 72:1152-3. [PMID: 10593405 DOI: 10.1016/s0015-0282(99)00438-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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McDonough PG. A marker locus for fertility?--Real or spurious? Fertil Steril 1999; 72:1149-50. [PMID: 10593402 DOI: 10.1016/s0015-0282(99)00434-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Hansen KA, Lowman L, Fiedler EP, Tho SP, Martindale R, McDonough PG. Pelvic adhesion formation after intraperitoneal installation of gallstones in a rabbit model. Fertil Steril 1999; 72:868-72. [PMID: 10560991 DOI: 10.1016/s0015-0282(99)00398-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To investigate whether intraperitoneal gallstones increase the risk of pelvic adhesions in a rabbit model. DESIGN Prospective, randomized, blinded, sham and human antigen controlled trial. SETTING An academic research environment. SUBJECT(S) Twelve New Zealand white rabbits. INTERVENTION(S) Twelve rabbits were divided into three groups of four each; a sham operation group, a gallstone and bile group (study group), and a human serum albumin and bile group (antigenic control). Three weeks after the operation individual subjects were randomized, with groups concealed to observers, and a necropsy was performed on each rabbit. MAIN OUTCOME MEASUREMENT(S) Necropsy was performed on each rabbit, and the adhesions were scored for extent, type, tenacity, inflammation, and gallstone involvement. RESULT(S) There was a statistically and biologically significant increase in gallstone involvement in adhesions, especially pelvic adhesions, in the study group. CONCLUSION(S) This study, along with an increasing number of case reports, suggests that gallstones inadvertently left in the peritoneal cavity may increase the morbidity of laparoscopic cholecystectomy. In females of reproductive age these gallstones may induce pelvic adhesions that may interfere with fertility or be associated with pelvic pain.
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Affiliation(s)
- K A Hansen
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta, USA.
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McDonough PG. Important or "much ado about nothing?". Fertil Steril 1999; 72:751. [PMID: 10521127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
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Abstract
OBJECTIVE To describe a patient with a clinically nonfunctioning pituitary macroadenoma who presented with mild hyperprolactinemia and amenorrhea. DESIGN Case report. SETTING Tertiary care medical facility. PATIENT(S) A 44-year-old woman with a 6-month history of amenorrhea. INTERVENTION(S) Pituitary testing, magnetic resonance imaging of the sella turcica, and transsphenoidal surgery. MAIN OUTCOME MEASURE(S) Pituitary function testing, magnetic resonance imaging, and return of menstrual cycles. RESULT(S) Baseline laboratory data revealed a serum prolactin level of 34 ng/mL (normal range, 3-20 ng/mL), normal thyroid function test results, and an FSH level of 6.7 mIU/mL. A second fasting prolactin level was 48 ng/mL. Magnetic resonance imaging of the sella turcica revealed a pituitary macroadenoma measuring 1.4 x 3.2 cm. Further testing of baseline pituitary function revealed normal findings. The patient underwent an uncomplicated transsphenoidal resection of the pituitary tumor and maintained normal pituitary function. Pathologic evaluation revealed a pituitary adenoma that stained positive for FSH and focally for the alpha subunit. The adenoma stained negative for GH, prolactin, ACTH, LH, and TSH. CONCLUSION(S) This patient had a nonsecreting gonadotroph macroadenoma that resulted in hypogonadotropic hypogonadism along with mild hyperprolactinemia, presumably secondary to interruption of normal transport down the pituitary stalk.
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Affiliation(s)
- K A Hansen
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta, USA
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McDonough PG. "Female power"--and a straight look into the female past. Fertil Steril 1999; 72:564-5. [PMID: 10519640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
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McDonough PG. Is it better to find Adam or study spermatogenesis? --a difference opinion. Fertil Steril 1999; 72:376-8. [PMID: 10475743 DOI: 10.1016/s0015-0282(99)00247-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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McDonough PG. Your genome--just another credit card to carry around. Fertil Steril 1999; 72:380-1. [PMID: 10439021 DOI: 10.1016/s0015-0282(99)00218-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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McDonough PG. Relationships in medicine--causal vs. casual. Fertil Steril 1999; 72:190. [PMID: 10428181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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McDonough PG. The first hope for the "big picture" of infection--DNA microarrays. Fertil Steril 1999; 72:187. [PMID: 10428178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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McDonough PG. Factoring in complexity and oocyte memory -- can transformations and cyperpathology distort reality? Fertil Steril 1999; 71:1172-4. [PMID: 10360936 DOI: 10.1016/s0015-0282(99)00127-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Hines RS, Tho SP, Behzadian MA, McDonough PG. Steroid 5alpha-reductase 2 gene melting polymorphisms in male subjects with azoospermia or oligospermia. Am J Obstet Gynecol 1999; 180:1394-8. [PMID: 10368476 DOI: 10.1016/s0002-9378(99)70024-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVE This study was designed to test the hypothesis that mutations in the gene for type 2 steroid 5alpha-reductase (SRD5A2) may be the cause of a phenotype characterized primarily by oligospermia or azoospermia. STUDY DESIGN Deoxyribonucleic acid from control subjects and subjects with oligospermia (n = 12) and azoospermia (n = 6) were evaluated for mutations in SRD5A2. Methods used for mutation analysis included polymerase chain reaction, Southern blotting, and denaturing gradient gel electrophoresis. RESULTS Denaturing gradient gel electrophoresis of all 5 amplified exons resulted in similar migration patterns in samples from both control and study subjects. Genomic deoxyribonucleic acid subjected to denaturing gradient gel electrophoresis after restriction digest revealed melting polymorphisms. Direct sequencing of the gene in a single patient with a unique melting polymorphism yielded a normal sequence. CONCLUSIONS Melting polymorphisms for SRD5A2 were detected in a group of patients with oligospermia or azoospermia. Sequence analysis did not demonstrate functional mutations in the coding sequence of this gene.
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Affiliation(s)
- R S Hines
- Division of Reproductive Endocrinology, Department of Obstetrics and Gynecology, The University of Mississippi Medical Center, Jackson, USA
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McDonough PG. Molecular biology and reproduction. Keio J Med 1999; 48:12-21. [PMID: 10206014 DOI: 10.2302/kjm.48.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Modern molecular biology has provided unique insights into the fundamental understanding of reproductive disorders and the detection of microorganisms. The remarkable advances in DNA diagnostics have been expedited by the development of polymerase chain reaction (PCR) and the ability to isolate DNA and RNA from many different sources such as blood, saliva, hair roots, microscopic slides, paraffin-embedded tissue sections, clinical swabs, and even cancellous bone. These technical advances have been bolstered by the development of an increasing number of effective screening techniques to scan genomic DNA for unknown point mutations. The continued development of technology will ultimately result in automated DNA (desoxyribonucleic acid) diagnosis for the practicing clinician. The continuing expansion of information concerning the human genome will place an increasing emphasis on bioinformatics and the use of computer software for analyzing DNA sequences. With the automation of DNA diagnosis and the use of small samples (500 nanograms), the direct examination of the DNA of a patient, fetus, or microorganism will emerge as a definitive means of establishing the presence of the specific genetic change that causes disease. A knowledge of the precise pathology at the molecular level has and will provide important insights into the biochemical basis for many human diseases. A firm knowledge of the DNA alterations in disease and expression patterns of specific genes will provide for more directed therapeutic strategies. The refinement of vector technology and nuclear transplantion techniques will provide the opportunity for directed gene therapy to the early human embryo. This presentation is designed to acquaint the reader with current techniques of testing at the DNA level, prototype mutations in the reproductive sciences, new concepts in the molecular mechanisms of disease that affect reproduction, and therapeutic opportunities for the future. It is hoped that future refinement of these techniques combined with the ability to maintain genetic modification of these cells with recombinant vector technology will provide a definitive therapy for many single gene disorders, such as sickle cell anemia and thalassaemia. It is truly the challenge of the next century to decipher how these legions of newly discovered genes work, and to create a molecular language that can extend across all organisms.
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Affiliation(s)
- P G McDonough
- Department of Obstetrics and Gynecology-Reproductive Endocrinology-Infertility, Medical College of Georgia, Augusta 30912-3360, USA.
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McDonough PG. Sleepless nights for SART investigators? Fertil Steril 1999; 71:394-5. [PMID: 9988426 DOI: 10.1016/s0015-0282(98)00524-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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McDonough PG. Firm oysters year round? Activation of developmental programs in human oocytes. Fertil Steril 1998; 70:1181-2. [PMID: 9848317 DOI: 10.1016/s0015-0282(98)00361-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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McDonough PG. Minidose GnRH-a for "poor responders." Cloning in place of data torturing? Fertil Steril 1998; 70:783-5. [PMID: 9797119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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Abstract
Over the past decade the tools of modern molecular biology have provided unique insights into our fundamental understanding of developmental systems. These insights have been gleaned from the study of a wide variety of model organisms including yeast (Saccharomyces cerevisiae), fly (Drosophila), worm (Caenorhabditis elegans), and mouse. In man, the first analysis of developmental systems started with sexual differentiation and focused on the role of Y-linked genes. The presence of living developmental mutants in man affecting sexual development and the early technology of deletion mapping facilitated the isolation and identification of small segments of putative DNA suspected to contain sex-determining genes. The isolation of genes such as SRY (Sex Related gene on Y) has provided the first insights into the molecular biology of human sexual differentiation. The focus on the Y chromosome has brought further insights into chromosomal pairing, statural determinants in man, oncogenesis, spermatogenesis, haploid genomes, and the lineage of man himself. This paper provides the circumstantial and direct evidence to illustrate the importance of the Y chromosome in reproductive disorders, and in the analysis of haploid genomes.
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Affiliation(s)
- P G McDonough
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta 30912-3360, USA
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McDonough PG. Case reports--Spam or ham? Fertil Steril 1998; 70:389-90. [PMID: 9696249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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McDonough PG. Drawing conclusions from imperfect data--isn't that what science does all the time? Fertil Steril 1998; 70:385-7. [PMID: 9696245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Layman LC, Lee EJ, Peak DB, Namnoum AB, Vu KV, van Lingen BL, Gray MR, McDonough PG, Reindollar RH, Jameson JL. Delayed puberty and hypogonadism caused by mutations in the follicle-stimulating hormone beta-subunit gene. N Engl J Med 1997; 337:607-11. [PMID: 9271483 DOI: 10.1056/nejm199708283370905] [Citation(s) in RCA: 152] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- L C Layman
- Department of Obstetrics and Gynecology, University of Chicago, IL 60637, USA
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Trott EA, Plouffe L, Hansen K, McDonough PG, George P, Khan I. The role of p53 tumor suppressor gene and bcl-2 protooncogene in rat corpus luteum death. Am J Obstet Gynecol 1997; 177:327-31; discussion 331-2. [PMID: 9290447 DOI: 10.1016/s0002-9378(97)70194-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVE The purpose of this study was to find out whether the mammalian corpus luteum undergoes genetically programmed cell death as evidenced by the positive or negative expression of specific biochemical markers of apoptosis (p53 and bcl-2). STUDY DESIGN Twenty-six immature 28-day-old female Sprague-Dawley rats were given 10 IU of pregnant mare's serum gonadotropin to induce ovulation and corpus luteum formation. Corpora lutea were collected on postovulatory days 8, 10, 12, and 14 and snap-frozen immediately. Determinations of apoptotic fragmentation of deoxyribonucleic acid were performed with use of samples radiolabeled at 3'-ends with deoxynucleotide alpha-phosphorus 32-deoxycytidine triphosphate (3000 Ci/mmol). Transcription of p53 and bcl-2 was determined by Northern blot analysis of total ribonucleic acid. Protein expression of p53 and bcl-2 was determined by Western blot analysis with a monoclonal rat antibody for p53 and a polyclonal rabbit antibody for bcl-2. RESULTS The nuclear fragmentation assay revealed formation of oligonucleosomes resulting in typical laddering of the deoxyribonucleic acid (corpus luteum) consistent with programmed cell death. Northern blot analysis of total ribonucleic acid prepared from immature (28-day-old) rat corpus luteum revealed the presence of a single p53 messenger ribonucleic acid transcript (2.1 kb) in all ages of corpus luteum studied from day 8 to day 14. Western blot analysis for p53 revealed a gradual reduction in p53 protein in corpus luteum from day 8 to day 12 until it became undetectable on day 14. Western blotting revealed expression of specific protein for bcl-2. CONCLUSIONS It appears that programmed cell death, as evidenced by formation of oligonucleosomes, occurs during mammalian luteal regression. The patterns of p53 ribonucleic acid expression in the corpus luteum suggest that the protein products of p53 and bcl-2 do not act in a diametric manner to regulate programmed cell death in the corpus luteum. The current results suggest that the mechanisms leading to programmed cell death in the mammalian corpus luteum may differ considerably from those in other organ systems.
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Affiliation(s)
- E A Trott
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta 30912, USA
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Abstract
Somatic gene therapy research in humans is still searching for appropriate vector systems and remains experimental. Germline therapy is a major technical challenge and can be considered only for the future.
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Affiliation(s)
- P G McDonough
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta 30912, USA
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Abstract
The mechanism to explain the oncogenic role of genomic YDNA in dysgenetic individuals remains uncertain. At this time, it is a statistically significant association, but without a biological explanation.
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Affiliation(s)
- P G McDonough
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta 30912, USA
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Layman LC, Edwards JL, Osborne WE, Peak DB, Gallup DG, Tho SP, Reindollar RH, Roach DJ, McDonough PG, Lanclos KD. Human chorionic gonadotrophin-beta gene sequences in women with disorders of HCG production. Mol Hum Reprod 1997; 3:315-20. [PMID: 9237259 DOI: 10.1093/molehr/3.4.315] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Women with recurrent abortion, primary unexplained infertility, and gestational trophoblastic neoplasia (GTN) manifest disordered human chorionic gonadotrophin (HCG) secretion. Mutations in the HCG beta/luteinizing hormone (LH) beta gene complex could cause aberrant HCG production in these disorders. The purpose of this study was to determine whether HCG beta gene deletions occur in women with recurrent abortion or primary unexplained infertility, and whether HCG beta gene duplications are present in women with GTN. DNA was extracted from 10 patients with unexplained recurrent abortion, 10 patients with unexplained primary infertility, 12 patients with GTN, three partners of women with GTN, and 30 controls. Southern blots were constructed and hybridized with DNA probes for HCG beta-5 and the LH beta gene. No gene deletions were identified in patients with recurrent abortion or primary unexplained infertility. Likewise, no gene duplications were identified in women with GTN. A previously described Mbol restriction fragment length polymorphism (RFLP) was identified in both patients and controls. A new Pstl RFLP was also characterized, but was present in patients and controls. Deletion/duplication mutations in the HCG beta/LH beta gene complex do not appear to be common causes of aberrant HCG production in humans with these disorders.
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Affiliation(s)
- L C Layman
- Department of Obstetrics and Gynecology, University of Chicago, IL 60637, USA
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Hines RS, Tho SP, Zhang YY, Plouffe L, Hansen KA, Khan I, McDonough PG. Paternal somatic and germ-line mosaicism for a sex-determining region on Y (SRY) missense mutation leading to recurrent 46,XY sex reversal. Fertil Steril 1997; 67:675-9. [PMID: 9093193 DOI: 10.1016/s0015-0282(97)81365-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE To determine the etiology for recurrent 46,XY sex reversal in a family with two Swyer siblings. DESIGN Deoxyribonucleic acid (DNA) from peripheral lymphocytes and sperm were analyzed for duplication of the dosage sensitive sex locus (DSS) and for mutations in sex-determining region on Y (SRY). SETTING An academic teaching hospital. PATIENTS A family consisting of mother, father, and five phenotypic daughters, of which two were 46,XY sex-reversed females. INTERVENTION Deoxyribonucleic acid (DNA) extraction, polymerase chain reaction (PCR), Southern blotting, dosage densitometry, single-strand conformation polymorphism (SSCP), and sequencing. MAIN OUTCOME MEASURE Comparison of control and subject DNA. RESULTS Deoxyribonucleic acid (DNA) analysis of SRY in genomic DNA from the 46,XY sex-reversed siblings revealed identical missense mutations (T-->G) in both sisters. Analysis of the SRY gene in paternal lymphocyte and sperm DNA revealed mosaicism for wild and mutant (T-->G) SRY sequences. SRY analysis of sperm DNA also demonstrated the same mosaicism for the T-->G missense mutation. CONCLUSION A postembryonic SRY mutation gave rise to paternal mosaicism for two distinct cell populations (SRY+/SRY-). The presence of a wild type SRY in the somatic cell line may account for a normal pattern of male sexual differentiation, whereas the presence of a mutated SRY in the germ line resulted in two 46,XY sex-reversed offspring. These results confirm a proposed mechanism for the condition of recurrent 46,XY sex-reversed females.
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Affiliation(s)
- R S Hines
- Medical College of Georgia, Augusta, USA
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McDonough PG. Measurement error--"How much of a difference does it take to make a difference?". Fertil Steril 1997; 67:790-1. [PMID: 9132361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Abstract
OBJECTIVE To report a case of ovarian cyst formation and myxedematous infiltration of the ovary in a subject with primary hypothyroidism. DESIGN Retrospective case report. SETTING University hospital. PATIENT(S) A 16-year-old female adolescent with pelvic pain, galactorrhea, irregular menses, and ovarian cysts on pelvic examination. INTERVENTION(S) Laparotomy with bilateral ovarian wedge resection and thyroid replacement therapy. MAIN OUTCOME MEASURE(S) Ovarian histopathology, thyroid function tests, and menstrual history. RESULT(S) Resolution of patient's pain, galactorrhea, and resumption of normal menses. CONCLUSION(S) Ovarian cyst formation may accompany primary hypothyroidism in the child with accelerated or delayed sexual maturation. To date, the underlying pathophysiology of the morphological changes in the ovary remain enigmatic. This case report provides the first insight into the actual histologic changes that occur in ovaries of subjects with primary hypothyroidism without secondary ovarian pathology such as torsion. There is clear evidence of myxedematous infiltration into the ovarian stroma without luteinization of the theca interna. These microscopic findings suggest that local changes occurring independent of gonadotropin stimulation may contribute significantly to altered morphology of the ovaries in primary hypothyroidism.
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Affiliation(s)
- K A Hansen
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta, USA
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McDonough PG. Editorial comment. "Misplaced confidences?". Fertil Steril 1996; 66:861-2. [PMID: 8964287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Affiliation(s)
- P G McDonough
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta, USA
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