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List of works by Daniel Franken

A comparison of endocrine function and semen analysis in fertile and subfertile men

scientific article published on 01 May 1981

A continuous quality control program for strict sperm morphology

scientific article published in October 2000

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

scientific article published on January 1993

A possible relationship between prolactin and spermatogenesis in humans

scientific article published on 01 March 1981

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

scientific article published in August 1996

Accurate sperm morphology assessment predicts sperm function

scientific article published on 01 November 2011

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

African experience with sperm morphology training courses

scientific article published in July 2003

Approaching the next millennium: how should we manage andrology diagnosis in the intracytoplasmic sperm injection era?

scientific article published on 01 March 1997

Assisted reproductive technologies may obviate apparent immunologic infertility* ⬇️

scientific article published on July 1, 1991

Binding of human spermatozoa to lectin-coated agarose microbeads

scientific article published on 01 March 1997

Can a cumulus cell complex be used to select spermatozoa for assisted reproduction?

scientific article published on 01 December 2009

Chromatin packaging as an indicator of human sperm dysfunction

scientific article

Clinical importance of a micro-assay for the evaluation of sperm acrosome reaction using homologous zona pellucida

scientific article

Clinical importance of zona pellucida-induced acrosome reaction and its predictive value for IVF.

scientific article published in January 2001

Clinical significance of human sperm-zona pellucida binding

scientific article published in June 1997

Comparison between propidium iodide and 7-amino-actinomycin-D for viability assessment during flow cytometric analyses of the human sperm acrosome

scientific article published in February 2010

Comparison of motility characteristics and normal sperm morphology of human semen samples separated by percoll density gradient centrifugation

scientific article published in March 1996

Comparison of sperm binding potential of uninseminated, inseminated-unfertilized, and fertilized-noncleaved human oocytes under hemizona assay conditions ⬇️

scientific article published on September 1, 1991

Corticosteroid therapy in case of immunologic infertility--a preliminary report

scientific article published on 01 May 1982

Defective sperm decondensation: a cause for fertilization failure

scientific article published in February 2002

Defining bioassay conditions to evaluate sperm/zona interaction: inhibition of zona binding mediated by solubilized human zona pellucida

scientific article published in April 1996

Defining the valid hemizona assay: accounting for binding variability within zonae pellucidae and within semen samples from fertile males ⬇️

scientific article published on December 1, 1991

Development of a new, highly sensitive zona pellucida binding assay using a bioluminescence-enhanced detection system

scientific article

Development of a predictive model for optimal zona pellucida binding using insemination volume and sperm concentration

scientific article published on 01 October 1994

Does training assist medical laboratory scientists with better evaluation of sperm morphology?

scientific article published in April 2007

Effect of acute in vivo sildenafil citrate and in vitro 8-bromo-cGMP treatments on semen parameters and sperm function

scientific article published in April 2004

Effect of multiple centrifugations on the evaluation of the acrosome reaction in human spermatozoa

scientific article published on November 1, 1992

Effect of semen characteristics on pregnancy rate in a gamete intrafallopian transfer program

scientific article published in September 1993

Electron microscopic evidence on the acrosomal status of bound sperm and their penetration into human hemizonae pellucida after storage in a buffered salt solution* ⬇️

scientific article published on May 1, 1991

Experimental Findings with Spermantibodies: Condom Therapy (A Case Report)

Experimental findings with spermantibodies: condom therapy (a case report).

scientific article

Extracellular signal-regulated kinase activation involved in human sperm-zona pellucida binding

scientific article

Fertilization efficiency of morphologically abnormal spermatozoa in assisted reproduction is further impaired by antisperm antibodies on the male partner's sperm.

scientific article published on October 1994

Fluorescein isothiocyanate conjugate-wheat germ agglutinin staining of human spermatozoa and fertilization in vitro.

scientific article published in April 1995

Fluorescent in situ hybridization evaluation of human Y-bearing spermatozoa separated by albumin density gradients

scientific article published on 01 February 1995

Forward progression of spermatozoa. Standardization of results

scientific article published on September 1978

Functional aspects of human sperm binding to the zona pellucida using the hemizona assay

scientific article

Gamete intrafallopian transfer: a treatment for long-standing infertility.

scientific article published in October 1987

Hemizona assay and its impact on the identification and treatment of human sperm dysfunctions

scientific article published on November 1, 1992

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

scientific article published on 01 September 1990

Hemizona assay using salt-stored human oocytes: evaluation of zona pellucida capacity for binding human spermatozoa

scientific article published in January 1989

Hemizona assay: sperm defect analysis, a diagnostic method for assessment of human sperm-oocyte interactions, and predictive value for fertilization outcome

scientific article

Hemizona assay: use of fresh versus salt-stored human oocytes to evaluate sperm binding potential to the zona pellucida

scientific article published in June 1991

Hemizona index (HZI) demonstrates excellent predictability when evaluating sperm fertilizing capacity in in vitro fertilization patients.

scientific article published in May 1994

How accurate is sperm morphology as an indicator of sperm function?

scientific article published on 04 August 2014

Human preovulatory oocytes have a higher sperm-binding ability than immature oocytes under hemizona assay conditions: evidence supporting the concept of "zona maturation".

scientific article published on June 1991

IgG-coated latex particles and the identification of sperm antibodies

scientific article published on 01 July 1984

Impact of weight loss on sperm DNA integrity in obese men.

scientific article published in February 2018

Important semen parameters during postcoital testing

scientific article published in January 1985

In vitro effect of pulsed 900 MHz GSM radiation on mitochondrial membrane potential and motility of human spermatozoa

scientific article published on 01 May 2008

In vitro fertilization failure: identification of gamete defects by investigation of sperm-zona pellucida binding capacity of unfertilized oocytes.

scientific article published in July 1996

Infertility after vasovasostomy: A case report

scientific article published on 01 June 1980

Influence of elevated pH levels on structural and functional characteristics of the human zona pellucida: functional morphological aspects

scientific article published in October 1995

Inhibition of G protein in human sperm and its influence on acrosome reaction and zona pellucida binding

scientific article published in December 1996

Inhibition of lymphocytes by seminal plasma fractions from azo-, oligo- and normozoospermic men

scientific article published on 01 December 1982

Lessons learned from a sperm morphology quality control programme

scientific article published in December 2006

Localization of tyrosine phosphorylated proteins in human sperm and relation to capacitation and zona pellucida binding

scientific article published on 27 November 2002

Localization of wheat germ agglutinin lectin receptors on human sperm by fluorescence microscopy: utilization of different fixatives

scientific article published in September 1994

Lymphocyte transformation rates of homosexual men in presence of seminal plasma

scientific article published on 01 January 1984

Male Oxidative Stress Infertility (MOSI): Proposed Terminology and Clinical Practice Guidelines for Management of Idiopathic Male Infertility

scientific article published on 28 May 2019

Mobile phone radiation does not induce pro-apoptosis effects in human spermatozoa

scientific article published on August 2010

Monitoring technologist reading skills in a sperm morphology quality control program

scientific article published on 01 June 2003

Morphology training is compulsory to ensure relevant clinical results

scientific article published on 01 December 2008

New aspects of sperm-zona pellucida binding ⬇️

scientific article published on August 1, 1998

Normal sperm morphology and chromatin packaging: comparison between aniline blue and chromomycin A3 staining

scientific article published in December 1999

Office-based sperm concentration: A simplified method for intrauterine insemination therapy

scientific article published on 9 March 2015

Phosphatidylinositol 3-kinase inhibition enhances human sperm motility and sperm-zona pellucida binding

scientific article

Physiological induction of the acrosome reaction in human sperm: validation of a microassay using minimal volumes of solubilized, homologous zona pellucida

scientific article

Physiological induction of the acrosome reaction in human sperm: validation of a microassay using minimal volumes of solubilized, homologous zona pellucida.

scientific article published in August 2000

Relationship between human spermatozoa-hyaluronan-binding assay, conventional semen parameters and fertilisation rates in intracytoplasmic spermatozoa injection

scientific article published on 13 September 2014

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

scientific article

Reproductive immunology: 1. The effect of different protein concentrations of seminal plasma on in vitro lymphocyte cultures

scientific article published on 01 September 1981

Reproductive immunology: 3. the effect of seminal plasma from oligozoospermic men on in vitro lymphocyte cultures

scientific article published on 01 January 1982

Reproductive immunology: 4. The effect of seminal plasma from immunologic infertile men on in vitro lymphocyte cultures

scientific article published on 01 March 1982

Second pregnancies among immunologically infertile women: a preliminary report

scientific article published on 01 January 1984

Selective capacity of glass-wool filtration for the separation of human spermatozoa with condensed chromatin: a possible therapeutic modality for male-factor cases?

scientific article published in September 1994

Semen analysis and sperm function testing ⬇️

scientific article published on December 19, 2011

Semen analysis workshops in India and Africa: the vital role of training and external quality control programmes

scientific article

Semen analysis workshops: 17 years' experience

scientific article published on January 2015

Semenology training programs: 8 years' experience

scientific article published on 31 May 2010

Sequential analysis of sperm functional aspects involved in fertilisation: a pilot study

scientific article published on 06 July 2011

Sperm antibodies in men with oligozoospermia and azoospermia

scientific article published on September 29, 1979

Sperm antibodies, semen quality, and male infertility

scientific article

Sperm binding capacity of human zona pellucida derived from oocytes obtained from different sources.

scientific article published in September 1994

Sperm chromatin packaging as an indicator of in-vitro fertilization rates

scientific article published on 01 March 2000

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 function assays and their predictive value for fertilization outcome in IVF therapy: a meta-analysis

scientific article

Sperm functional tests

scientific article

Sperm morphology training in India

scientific article published on 21 October 2014

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 cervical mucus

scientific article published on 01 January 1984

Sperm selection capacity of the human zona pellucida.

scientific article published in December 1991

Sperm-oocyte interaction: studies on the kinetics of zona pellucida binding and acrosome reaction of human spermatozoa

scientific article

Sperm/cervical mucus contact test compared to immunobead test for sperm antibodies

scientific article

Sperm/cervical mucus contact test for sperm antibodies

scientific article published on 01 January 1986

Spermagglutinating antibodies: a comparison of three different techniques

scientific article published on 01 January 1980

Temperature controlled centrifugation improves sperm retrieval ⬇️

scientific article published on June 1, 2011

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

scientific article published on February 1, 1992

The Friberg Spermagglutination Test - a Modification ⬇️

scientific article published on 01 January 1979

The Hemizona Assay for Assessment of Sperm Function ⬇️

scientific article published on January 1, 2013

The SCMC test: a accurate indicator for spermatozoal antibodies

scientific article published on 01 June 1987

The SCMC test: a reliable monitor for antispermatozoal antibodies

scientific article published on 01 July 1988

The SCMC test: a screening test for spermatozoal antibodies

scientific article published on 01 May 1983

The ability of the hemizona assay to predict human fertilization in different and consecutive in-vitro fertilization cycles

scientific article published in August 1993

The clinical significance of sperm-zona pellucida binding.

scientific article published on 15 December 1998

The clinical significance of sperm-zona pellucida binding: 17 years later

scientific article

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 losartan therapy on ventricular function in Marfan patients with haploinsufficient or dominant negative FBN1 mutations

scientific article published on 04 October 2016

The effect of pentoxifylline on sperm movement characteristics and zona pellucida binding potential of teratozoospermic men.

scientific article published in March 1994

The effect of pulsed 900-MHz GSM mobile phone radiation on the acrosome reaction, head morphometry and zona binding of human spermatozoa

scientific article published on 01 February 2011

The effect of seminal plasma on gonadotrophin secretion by sheep pituitary cells in culture.

scientific article published in September 1984

The establishment of sperm morphology satellite training laboratories in Africa

scientific article published in June 2005

The hemizona assay (HZA) as an experimental model to evaluate the inhibition of sperm binding to the murine zona pellucida by isolated zona pellucida protein ⬇️

scientific article published on May 1, 1991

The hemizona assay (HZA): a predictor of human sperm fertilizing potential in in vitro fertilization (IVF) treatment

scientific article published on 01 February 1989

The hemizona assay (HZA): development of a diagnostic test for the binding of human spermatozoa to the human hemizona pellucida to predict fertilization potential.

scientific article published in April 1988

The hemizona assay (HZA): finding sperm that have the "right stuff".

scientific article published in December 1988

The hemizona assay: its role in identifying male factor infertility in assisted reproduction

scientific article published in May 1993

The immunobead technique: an indicator of disturbed sperm cervical mucus interaction

scientific article published on 01 January 1988

The influence of a mineral oil overlay on the zona pellucida binding potential of human spermatozoa ⬇️

scientific article published on 01 May 1995

The influence of homogenous zona pellucida on human spermatozoa hyperactivation, acrosome reaction and zona binding

scientific article published in February 2007

The influence of solubilized porcine zona pellucida protein on the binding capacity of human spermatozoa ⬇️

scientific article published on September 1, 1992

The influence of sperm/zona pellucida collision rates on zona binding.

scientific article published in September 1996

The mixed antiglobulin reaction as a screening test for antispermatozoal antibodies

scientific article published on 01 July 1982

The postcoital test. A preliminary report

scientific article published on 01 November 1980

The predictive value of the postcoital test for auto- and isoimmunity to spermatozoa

scientific article published in November 1989

The relationship between morphology, motility and zona pellucida binding potential of human spermatozoa

scientific article published in January 1994

The role of paternal chromosomes and sperm morphology on the outcome of intracytoplasmic sperm injection

scientific article published in October 2006

The treatment of immunological infertility

scientific article published on August 29, 1981

The zona pellucida-induced acrosome reaction of human spermatozoa involves extracellular signal-regulated kinase activation

scientific article published in November 2001

Use of failed-fertilized oocytes for diagnostic zona binding purposes after sperm binding improvement with a modified medium

scientific article

Validation of the hemizona assay in a monkey model: influence of oocyte maturational stages

scientific article

Wheat germ agglutinin receptors on human sperm membranes and sperm morphology

scientific article published on 01 January 1994

Zona pellucida as physiological trigger for the induction of acrosome reaction

scientific article published on 01 August 1998

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

scientific article published on July 2002

Zona pellucida mediated acrosome reaction and sperm morphology ⬇️

scientific article published on November 1, 1997

Zona pellucida-induced acrosome reaction in human sperm: dependency on activation of pertussis toxin-sensitive G(i) protein and extracellular calcium, and priming effect of progesterone and follicular fluid.

scientific article published in August 2002

[The treatment of sperm antibodies with corticosteroids]

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