Search Results - "Pierik, F H"

How do type and size of natural environments relate to physical activity behavior? by Jansen, F.M., Ettema, D.F., Kamphuis, C.B.M., Pierik, F.H., Dijst, M.J.

“…Natural environments (NE) are promoted as places that support physical activity (PA), but evidence on PA distribution across various types and sizes of NE is…”
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Hour-by-hour physical activity patterns of adults aged 45–65 years: a cross-sectional study by Jansen, F.M., van Kollenburg, G.H., Kamphuis, C.B.M., Pierik, F.H., Ettema, D.F.

“…Limited information exists on hour-by-hour physical activity (PA) patterns among adults aged 45-65 years. Therefore, this study aimed to distinguish typical…”
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Prevalence of testicular microlithiasis in asymptomatic males 0 to 19 years old by Goede, J, Hack, W W M, van der Voort-Doedens, L M, Sijstermans, K, Pierik, F H

“…We assessed the prevalence of testicular microlithiasis via ultrasound in asymptomatic males 0 to 19 years old. We studied only patients with 2 scrotal testes…”
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Bilateral testicular microlithiasis predicts the presence of the precursor of testicular germ cell tumors in subfertile men by de Gouveia Brazao, C A, Pierik, F H, Oosterhuis, J W, Dohle, G R, Looijenga, L H J, Weber, R F A

“…A high prevalence of testicular microlithiasis has been described in adolescent and adult clinical cases of invasive testicular germ cell tumor (TGCT), that is…”
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Does folic acid and zinc sulphate intervention affect endocrine parameters and sperm characteristics in men? by EBISCH, I. M. W., PIERIK, F. H., DE JONG, F. H., THOMAS, C. M. G., STEEGERS-THEUNISSEN, R. P. M.

“…Summary We evaluated pre‐ and post‐intervention endocrine and semen parameters in a double‐blind, placebo‐controlled intervention study to investigate the…”
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Reduction in the number of orchidopexies for cryptorchidism after recognition of acquired undescended testis and implementation of expectative policy by Hack, WWM, Van Der Voort-Doedens, LM, Sijstermans, K, Meijer, RW, Pierik, FH

“…Background: Since the mid‐1990s, acquired undescended testis has gradually been recognised as a separate entity for which the efficacy of prepubertal surgery…”
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The effect of cryptorchidism on inhibin B in a subfertile population by De Gouveia Brazao, C. A., Pierik, F. H., Erenpreiss, Y., De Jong, F. H., Dohle, G. R., Weber, R. F. A.

“…objective Prepubertal cryptorchidism may cause fertility problems in adulthood, due to impaired spermatogenesis. Serum inhibin B has emerged as an accurate…”
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Testicular microlithiasis in two boys with a chromosomal abnormality by Goede, Joery, Hack, W W M, Pierik, F H

“…A nine and 13-year-old boy, previously diagnosed with 18q syndrome and an 11q deletion, respectively were diagnosed with testicular microlithiasis (TM). Both…”
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Is routine scrotal ultrasound advantageous in infertile men? by Pierik, F H, Dohle, G R, van Muiswinkel, J M, Vreeburg, J T, Weber, R F

“…We determine the value of routine scrotal ultrasonography in the evaluation of male infertility. Scrotal color Doppler ultrasonography reports of 1,372…”
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Environmental influences on male reproduction by Weber, R.F.A., Pierik, F.H., Dohle, G.R., Burdorf, A.

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Maternal and Paternal Risk Factors for Cryptorchidism and Hypospadias: A Case-Control Study in Newborn Boys by Pierik, Frank H., Burdorf, Alex, Deddens, James A., Juttmann, Rikard E., Rob F. A. Weber

“…Little is known on environmental risk factors for cryptorchidism and hypospadias, which are among the most frequent congenital abnormalities. The aim of our…”
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Serum Inhibin B as a Marker of Spermatogenesis by Pierik, Frank H, Vreeburg, Jan T. M, Stijnen, Theo, de Jong, Frank H, Weber, Robertus F. A

“…Inhibin B is produced by Sertoli cells, provides negative feedback on FSH secretion, and may prove to be an important marker for the functioning of…”
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Subtotal obstruction of the male reproductive tract by Dohle, G R, van Roijen, J H, Pierik, F H, Vreeburg, J T M, Weber, R F A

“…Bilateral obstruction of the male reproductive tract is suspected in men with azoospermia, normal testicular volume and normal FSH. A testicular biopsy is…”
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Improvement of sperm count and motility after ligation of varicoceles detected with colour Doppler ultrasonography by PIERIK, VREEBURG, STIJNEN, ROIJEN, J. H. VAN, DOHLE, LAMÉRIS, TIMMERS, WEBER

“…The debate regarding the efficacy of varicocele ligation for improvement of semen parameters and pregnancy rates is ongoing. In addition, no consensus exists…”
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Restructuring routinely collected patient data: ORCA applied to andrology by Pierik, F H, van Ginneken, A M, Timmers, T, Stam, H, Weber, R F

“…Hospital information systems do not always cover all required detail per specialty. This may lead to scattering of data over disparate systems and the paper…”
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A high hypospadias rate in The Netherlands by Pierik, Frank H., Burdorf, Alex, Nijman, J.M.Rien, de Muinck Keizer-Schrama, Sabine M.P.F., Juttmann, R.E., Weber, Robertus F.A.

“…BACKGROUND: Reports on increasing hypospadias trends are based on birth defect registries, which are prone to inaccuracy. We assessed the prevalence of…”
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Occupational exposure of animal caretakers to cyclophosphamide by Sessink, P J, de Roos, J H, Pierik, F H, Anzion, R B, Bos, R P

“…Little is known about the exposure of animal caretakers to toxic agents during the administration of such chemicals to laboratory animals. In this study, we…”
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Increased serum inhibin B levels after varicocele treatment by Pierik, Frank H., Abdesselam, Salem Aït, Vreeburg, Jan T. M., Dohle, G. R., De Jong, Frank H., Weber, Robertus F. A.

“…OBJECTIVE Inhibin B is secreted by Sertoli cells in response to FSH and is the major feedback regulator of FSH secretion in man. The serum inhibin B level has…”
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Personal exposure to UFP in different micro-environments and time of day by de Kluizenaar, Y., Kuijpers, E., Eekhout, I., Voogt, M., Vermeulen, R.C.H., Hoek, G., Sterkenburg, R.P., Pierik, F.H., Duyzer, J.H., Meijer, E.W., Pronk, A.

“…Particulate matter exposure may cause adverse health effects. Although ultrafine particulate matter (UFP) is hypothesised to be particularly health relevant,…”
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The advantages of standardized evaluation of male infertility by Pierik, Frank H., Van Ginneken, Astrid M., Dohle, Gert R., Vreeburg, Jan T. M., Weber, Robertus F. A.

“…Healthcare can be improved by standardization and by evaluation of diagnostic methods and treatments. In the field of andrology, in which large patient numbers…”
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