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List of works by Roelof Menkveld

A comparative analysis of grade 1 and grade 2 water in the Tygerberg Hospital in vitro fertilisation programme

scientific article

A comparative study of the white cell pipette method and the Makler counting chamber method of counting spermatozoa

scientific article published on 01 September 1980

A new computerized method of reading sperm morphology (strict criteria) is as efficient as technician reading.

scientific article published on January 1993

A possible increase in the number of metaphase I spermatocytes in testicular biopsy of infertile men with chromosomal aberrations

scientific article published on 01 May 1983

A prospective study on the predictive value of normal sperm morphology as evaluated by computer (IVOS).

scientific article published in August 1996

A statistical comparison of three methods for the counting of human spermatozoa

scientific article published on 01 November 1984

Acrosomal morphology as a novel criterion for male fertility diagnosis: relation with acrosin activity, morphology (strict criteria), and fertilization in vitro.

scientific article published on March 1996

Advantages of strict (Tygerberg) criteria for evaluation of sperm morphology

scientific article published on December 1995

An intracytoplasmic sperm injection pregnancy with a globozoospermic male

scientific article

Antisperm antibody tests: traditional methods compared to ELISA.

scientific article published in January 1989

Artificial intrauterine insemination with washed prepared spermatozoa of the husband

scientific article published in October 1987

Assisted reproductive technologies may obviate apparent immunologic infertility* ⬇️

scientific article published on July 1, 1991

Autosperm antibodies in treated, pregnant and non-pregnant immunologically infertile patients

scientific article published on 01 May 1989

Chromosome studies in 496 infertile males with a sperm count below 10 million/ml

scientific article published on 01 January 1984

Clinical significance of the low normal sperm morphology value as proposed in the fifth edition of the WHO Laboratory Manual for the Examination and Processing of Human Semen

scientific article published on January 2010

Comparative analysis of in vitro fertilization methods for establishing successful embryo transfer clinics

scientific article

Comparison of a discontinuous Percoll gradient method versus a swim-up method: effects on sperm morphology and other semen parameters

scientific article published in March 1990

Comparison of normal sperm morphology outcomes from two different computer-assisted semen analysis systems

scientific article published in May 2001

Comparison of three staining methods for the morphological evaluation of human spermatozoa

scientific article published on 28 June 2007

Critical assessment of sperm morphology before and after double wash swim-up preparation for in vitro fertilization

scientific article

DNA fragmentation of spermatozoa and assisted reproduction technology

scientific article published in October 2003

Detection of sperm antibodies on unwashed spermatozoa with the immunobead test: a comparison of results with the routine method and seminal plasma TAT titers and SCMC test

scientific article published in March 1991

Does the wash-up and swim-up method of semen preparation play a role in sex selection?

scientific article published on 01 January 1989

ESHRE special interest group for andrology basic semen analysis course: a continued focus on accuracy, quality, efficiency and clinical relevance.

scientific article published on 28 September 2011

Effect of alcohol intake and cigarette smoking on sperm parameters and pregnancy

scientific article published on 11 December 2012

Effect of ethanol on semen characteristics of vervet monkeys

scientific article published on January 1991

Effect of lead and organophosphates on sperm morphology

scientific article published in March 1991

Effect of rapid dilution of semen on sperm-bound autoantibodies

scientific article published on 01 January 1989

Effect of reactive oxygen species produced by spermatozoa and leukocytes on sperm functions in non-leukocytospermic patients

scientific article published on 01 March 2005

Effect of sperm washing and swim-up on antibodies bound to sperm membrane: use of immunobead/sperm cervical mucus contact tests

scientific article published in January 1989

Effects of different staining and washing procedures on the results of human sperm morphology evaluation by manual and computerised methods

scientific article published on 01 January 1997

Effects of folic acid and zinc sulfate on male factor subfertility: a double-blind, randomized, placebo-controlled trial

scientific article published on March 2002

Evaluation of immunobead test (IBT), tray-agglutination test (TAT), and sperm immobilization test (SIT).

scientific article

Evaluation of the relation between preapoptotic sperm rate in ejaculate and intrauterine insemination success rate in patients with unexplained infertility

scientific article published on 10 September 2016

Evaluation of three substitutes for Percoll in sperm isolation by density gradient centrifugation

scientific article published on 01 November 1998

Glass wool filter preparation of cryopreserved spermatozoa.

scientific article published in January 1994

Hemizona assay and teratozoospermia: increasing sperm insemination concentrations to enhance zona pellucida binding

scientific article published on 01 September 1990

Human pregnancy after transfer of intact frozen-thawed embryos

scientific article published on 01 December 1989

Hypoosmotic swelling test in the prediction of male fertility

scientific article

Influence of deoxyribonucleic acid damage on fertilization and pregnancy

scientific article published in April 2004

Intracytoplasmic sperm injection with testicular spermatozoa in men with azoospermia

scientific article

Leucocytes and intrinsic ROS production may be factors compromising sperm chromatin condensation status

scientific article published on 01 April 2010

Male reproductive health statement (XIIIth international symposium on Spermatology, may 9th-12th 2018, Stockholm, Sweden

article

Measurement and significance of sperm morphology ⬇️

scientific article published on November 15, 2010

Monitoring technologist reading skills in a sperm morphology quality control program

scientific article published on 01 June 2003

Morphological sperm alternations in different types of prostatitis

scientific article published on 01 October 2003

Morphometric dimensions of the human sperm head depend on the staining method used

scientific article published on 17 April 2010

Multicenter Study on Reproducibility of Sperm Morphology Assessments

scientific article published on 01 September 1998

Obesity is associated with increased seminal insulin and leptin alongside reduced fertility parameters in a controlled male cohort

scientific article

Oligozoospermia: a seven-year survey of the incidence, chromosomal aberrations, treatment and pregnancy rate

scientific article published on January 1, 1975

Oligozoospermia: recent prognosis and the outcome of 73 pregnancies in oligozoospermic couples

scientific article published on 01 June 2006

Osmolarity studies with different containers and volumes in a human in vitro fertilization programme

Possible Changes in Male Fertility Over a 15-Year Period

scientific article published in January 1986

Proposal of guidelines for the appraisal of SEMen QUAlity studies (SEMQUA).

scientific article published on 09 October 2012

Relationship between human sperm morphology and acrosomal function

scientific article

Relationship between zona pellucida-induced acrosome reaction, sperm morphology, sperm-zona pellucida binding, and in vitro fertilization

scientific article

Results of phase I of the in vitro fertilization and embryo transfer programme at Tygerberg Hospital

scientific article published on 01 May 1985

Results of the in vitro fertilization programme at Tygerberg Hospital, phases II and III.

scientific article

Revisiting the assessment of semen viscosity and its relationship to leucocytospermia

scientific article

Seasonal changes in human sperm chromatin condensation

scientific article

Semen characteristics of vervet monkeys

scientific article published in January 1989

Semen parameters, including WHO and strict criteria morphology, in a fertile and subfertile population: an effort towards standardization of in-vivo thresholds

scientific article published in June 2001

Significance of Antisperm Antibodies in Female Serum in a Gamete Intrafallopian Transfer Program ⬇️

scientific article published on 01 May 1998

Sperm Morphology Assessment Using Strict (Tygerberg) Criteria ⬇️

scientific article published on January 1, 2013

Sperm decondensation and semen parameters: utilization of a simple staining technique for the evaluation of human sperm decondensation.

scientific article published in March 1994

Sperm morphologic features as a prognostic factor in in vitro fertilization

scientific article published on 01 December 1986

Sperm morphology and male urogenital infections ⬇️

scientific article published on January 1, 1998

Sperm morphology assessment--historical perspectives and current opinions

scientific article published on 01 March 2001

Sperm morphology assessment: historical review in relation to fertility

scientific article published on November 1995

Sperm morphology--predictive value?

scientific article published on 01 April 1992

Sperm morphology: assessing the agreement between the manual method (strict criteria) and the sperm morphology analyzer IVOS

scientific article published on 01 January 1995

Sperm selection capacity of the human zona pellucida.

scientific article published in December 1991

Standards in semen examination: publishing reproducible and reliable data based on high-quality methodology

scientific article published in 2022

The Acridine Orange test: determining the relationship between sperm morphology and fertilization in vitro ⬇️

scientific article published on February 1, 1992

The acrosome index, radical buffer capacity and number of isolated progressively motile spermatozoa predict IVF results

scientific article published on September 2001

The development of a continuous quality control programme for strict sperm morphology among sub-Saharan African laboratories

scientific article published on March 2000

The effect of surgical glove powder on cleavage of two-cell mouse embryos in an in vitro fertilization programme

scientific article published on 01 February 1985

The evaluation of morphological characteristics of human spermatozoa according to stricter criteria

scientific article

The technique for human embryo transfer at Tygerberg Hospital

scientific article published on 01 March 1986

Treatment of male sperm autoimmunity by using the gamete intrafallopian transfer procedure with washed spermatozoa

scientific article published on 01 April 1990

Typha capensis (Rohrb.)N.E.Br. (bulrush) extract scavenges free radicals, inhibits collagenase activity and affects human sperm motility and mitochondrial membrane potential in vitro: a pilot study

scientific article

Urogenital inflammation: changes of leucocytes and ROS.

scientific article published on October 2003

Use of specific monoclonal antibodies to secretory IgA for the detection of spermatozoal antibodies in serum and seminal plasma by enzyme-linked immunosorbent assay

scientific article published in May 1989

Usefulness of sperm penetration assay in fertility predictions

scientific article published on January 1989

Validation of a new disposable counting chamber

scientific article published in April 2001

Zona pellucida induced acrosome reaction, sperm morphology, and sperm-zona binding assessments among subfertile men.

scientific article published on July 2002

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