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1.
Reprod Health ; 20(1): 136, 2023 Sep 12.
Artigo em Inglês | MEDLINE | ID: mdl-37700294

RESUMO

BACKGROUND: Recent studies have suggested that genital mycoplasma infections may be associated with male infertility. However, this association remains controversial due to time lapse, sample size, and regional prevalence. OBJECTIVES: This study aimed to systematically evaluate the relationship between genital mycoplasma and male infertility through a meta-analysis and to provide a basis for the clinical management of male infertility. METHODS: We conducted a search on PubMed, EMBASE, the Cochrane Library, and CNKI databases, from January 2000 to June 2023 to identify case-control studies on the interrelationship between genital mycoplasma infection and male infertility. Two independent researchers performed an assessment of the methodological quality of trials according to the Newcastle-Ottawa scale and extracted data strictly based on the inclusion and exclusion criteria, and afterward, we carried out a meta-analysis using Stata 16.0. Pooled odds ratios (OR) with 95% confidence intervals (CI) were used to assess this relationship. RESULTS: This meta-analysis included 21 studies from seven countries with a total of 53025 infertility cases and 6435 controls; the age range of the participating men was from 20 to 59 years old. The results obtained showed a higher prevalence of M. genitalium, M. hominis and U. urealyticum infections in infertile men than in the controls, with the opposite result for U. parvum (M. genitalium, OR, 3.438 [95% CI: 1.780, 6.643], with P = 0.000; M. hominis, OR, 1.840 [95% CI: 1.013, 3.343], with P = 0.045; U. urealyticum, OR, 3.278 [95% CI: 2.075, 5.180], with P = 0.000; U. parvum, OR, 1.671 [95% CI: 0.947, 2.950], with P = 0.077). Further, two subgroup analyses also showed that M. hominis and U. urealyticum infections were strongly associated with male infertility in China (M. hominis, P = 0.009; U. urealyticum, P = 0.000); however, M. hominis and U. urealyticum infection was not strongly associated with male infertility worldwide (M. hominis, P = 0.553; U. urealyticum, P = 0.050). CONCLUSION: This meta-analysis revealed that male infertility was significantly associated with M. genitalium, M. hominis and U. urealyticum infections, while U. parvum infection was not. Further, our study showed that genital mycoplasma infection influences male infertility and provides a basis for future treatment.


Assuntos
Infertilidade Masculina , Infecções por Mycoplasma , Masculino , Humanos , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/etiologia , Estudos de Casos e Controles , China , Infecções por Mycoplasma/complicações , Infecções por Mycoplasma/epidemiologia , Genitália
2.
Artigo em Inglês | MEDLINE | ID: mdl-37572397

RESUMO

The worldwide prevalence of obesity is increasing among both sexes, with associated impacts on chronic health and medical comorbidities. Similarly, the effects of obesity on reproductive health are increasingly being recognized. Adiposity is associated with reduced fertility in men, with a complex and multifactorial etiology. The reported effects of obesity on semen parameters and impaired fertility are contrasting, with some studies showing a clear reduction in reproductive outcomes associated with increased body mass index, while others do not show such impacts. These controversies may be due to the complex pathophysiology and interplay between gonadotropins and end organs, as well as genetic and epigenetic changes and oxidative stress on male fertility and function. These different aspects have led to heterogeneous participants in studies and varying implications for assisted reproductive outcomes as well as offspring health. Treatment modalities to manage obesity include lifestyle, medical, and surgical options, with emerging and effective medical treatments showing promise in reproductive outcomes.


Assuntos
Infertilidade Masculina , Obesidade , Feminino , Masculino , Humanos , Obesidade/complicações , Obesidade/epidemiologia , Obesidade/terapia , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/etiologia , Infertilidade Masculina/terapia , Fertilidade , Análise do Sêmen , Sêmen
3.
Arch Iran Med ; 26(2): 110-116, 2023 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-37543931

RESUMO

BACKGROUND: The numerical and structural abnormalities of chromosomes are the most common cause of infertility. Here, we evaluated the prevalence and types of chromosomal abnormalities in Iranian infertile patients. METHODS: We enrolled 1750 couples of reproductive age with infertility, who referred to infertility clinics in Tehran during 2014- 2019, in order to perform chromosomal analysis. Peripheral blood samples were obtained from all couples and chromosomal abnormalities were evaluated by G-banded metaphase karyotyping. In some cases, the detected abnormalities were confirmed using fluorescence in-situ hybridization (FISH). RESULTS: We detected various chromosomal abnormalities in 114/3500 (3.257%) patients with infertility. The prevalence of chromosomal abnormalities was 44/114 (38.596%) among infertile females and 70/114 (61.403%) among infertile males. Structural chromosomal abnormalities were found in 27/1750 infertile females and 35/1750 infertile males. Numerical chromosomal abnormalities were found in 17/1750 of females and 35/1750 of males. The 45, XY, rob (13;14) (p10q10) translocation and Klinefelter syndrome (47, XXY) were the most common structural and numerical chromosomal abnormalities in the Iranian infertile patients, respectively. CONCLUSION: In general, we found a high prevalence of chromosomal abnormalities in Iranian patients with reproductive problems. Our study highlights the importance of cytogenetic studies in infertile patients before starting infertility treatments approaches.


Assuntos
Infertilidade Feminina , Infertilidade Masculina , Humanos , Masculino , Feminino , Irã (Geográfico)/epidemiologia , Prevalência , Aberrações Cromossômicas , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/genética , Cariotipagem , Infertilidade Feminina/epidemiologia , Infertilidade Feminina/genética
4.
Int J Mol Sci ; 24(15)2023 Aug 04.
Artigo em Inglês | MEDLINE | ID: mdl-37569791

RESUMO

Endocrine disruptor chemicals (EDCs) can have a harmful effect on the human body's endocrine system and thus adversely affect the development, reproduction, neurological, cardiovascular, and immune systems and metabolism in humans and wildlife. According to the World Health Organization, EDCs are mostly man-made and found ubiquitously in our daily lives, notably in pesticides, metals, and additives or contaminants in food and personal care products. Human exposure occurs through ingestion, inhalation, and dermal contact. Bisphenol A (BPA) is a proven EDC capable of mimicking or blocking receptors and altering hormone concentrations and metabolism. Although consumed in low doses, it can stimulate cellular responses and affect the body's functions. In humans, exposure to BPA has been correlated with the onset or development of several diseases. This literature review aimed to verify the effects of BPA on human male infertility using the most recently published literature. Thus, this review allowed us to conclude that this compound seems to have harmful effects on human male fertility, causing changes in hormonal and semen characteristics. However, these conclusions lack more robust and reproducible scientific studies. Even so, and since male infertility prevalence is increasing, preventive measures must be taken to ensure male fertility.


Assuntos
Disruptores Endócrinos , Infertilidade Masculina , Humanos , Masculino , Reprodução , Fertilidade , Fenóis/efeitos adversos , Compostos Benzidrílicos/toxicidade , Infertilidade Masculina/induzido quimicamente , Infertilidade Masculina/epidemiologia , Disruptores Endócrinos/toxicidade
5.
Eur Rev Med Pharmacol Sci ; 27(15): 7092-7100, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37606119

RESUMO

OBJECTIVE: The World Health Organization (WHO) defines infertility as a person failing to achieve a pregnancy after 12 months or more of regular unprotected sexual intercourse. Infertility includes female infertility and male infertility. The aim of this paper is to study the etiology of infertility and related influencing factors in men of reproductive age in Jinan. PATIENTS AND METHODS: In this study, 172 male infertile patients who attended the Department of Assisted Reproduction of Shandong Provincial Maternal and Child Health Hospital in Shandong, China and the Infertility Clinic of Jinan Central Hospital in Shandong, China from August 2021 to April 2022 are selected as the study population (infertility group). A convenience sampling method is used to select 257 men from couples attending the Obstetrics Department of Qilu Hospital in Shandong, China, the Obstetrics Department of the Second Hospital of Shandong University in Shandong, China, and the Obstetrics Department of Maternal and Child Health Hospital in Shandong, China from October 2021 to February 2022 as the study subjects (control group). A self-designed questionnaire is used to conduct the survey, which includes basic personal information, lifestyle information, marital and family-related information, and one-way and multi-way logistic regression analyses are performed. RESULTS: The average age of the case group and the control group are 34.03±5.13 years old and 33.61±8.18 years old; the average height is 175.80±5.91 cm and 176.78±5.25 cm; the average weight is 80.28±14.70 kg and 83.09±45.36 kg. The differences in age, height, and weight between the case group and the control group are not statistically significant by t-test. Moderate oligospermia is the predominant cause of infertility in men of reproductive age in Jinan. A multifactorial logistic regression analysis yields that academic qualifications (OR=2.518, 95% CI: 1.023 to 6.196), coffee consumption (OR=7.692, 95% CI: 1.623 to 36.460), living in a room that had been renovated within a period of time (OR=2.769, 95% CI: 1.104 to 6.949), stress level (OR=47.280, 95% CI: 23.656-94.494), quality of sexual life (OR=3.352, 95% CI: 1.331-8.442), and duration of couple separation (OR=3.851, 95% CI: 1.094-13.557) are the main risk factors for infertility in men of reproductive age in Jinan. CONCLUSIONS: In this study, a total of 6 risk factors are screened for male infertility in Jinan in the reproductive age, including high academic qualifications, coffee consumption, living in a room that has finished renovation within 3 months, high stress, poor quality of sexual life, and long spousal separation. Three factors can be controlled, avoided, or reduced through personal actions; the factors are coffee consumption, living in a room that has finished renovation within 3 months, and high stress, all of which may reduce the level of male reproductive health.


Assuntos
Infertilidade Feminina , Infertilidade Masculina , Criança , Gravidez , Humanos , Feminino , Masculino , Adulto , Lactente , Café , Infertilidade Masculina/epidemiologia , Reprodução , Comportamento Sexual
6.
Medicina (Kaunas) ; 59(7)2023 Jul 14.
Artigo em Inglês | MEDLINE | ID: mdl-37512119

RESUMO

Background and Objectives: The relationship between male infertility (MI) and testicular cancer (TC) is bilateral. On one hand, it is well-established that patients diagnosed with TC have a high risk of pre- and post-treatment infertility. On the other hand, the risk of developing TC in male infertile patients is not clearly defined. The objective of this review is to analyze the histopathological, etiological, and epidemiological associations between MI and the risk of developing testicular cancer. This review aims to provide further insights and offer a guide for assessing the risk factors for TC in infertile men. Materials and Methods: A comprehensive literature search was conducted to identify relevant studies discussing the relationship between MI and the risk of developing TC. Results: The incidence rates of germ cell neoplasia in situ (GCNIS) appear to be high in infertile men, particularly in those with low sperm counts. Most epidemiological studies have found a statistically significant risk of developing TC among infertile men compared to the general or fertile male populations. The concept of Testicular Dysgenesis Syndrome provides an explanatory model for the common etiology of MI, TC, cryptorchidism, and hypospadias. Clinical findings such as a history of cryptorchidism could increase the risk of developing TC in infertile men. Scrotal ultrasound evaluation for testis lesions and microlithiasis is important in infertile men. Sperm analysis parameters can be useful in assessing the risk of TC among infertile men. In the future, sperm and serum microRNAs (miRNAs) may be utilized for the non-invasive early diagnosis of TC and GCNIS in infertile men. Conclusions: MI is indeed a risk factor for developing testicular cancer, as demonstrated by various studies. All infertile men should undergo a risk assessment using clinical examination, ultrasound, and semen parameters to evaluate their risk of TC.


Assuntos
Criptorquidismo , Infertilidade Masculina , Neoplasias Testiculares , Humanos , Masculino , Neoplasias Testiculares/complicações , Neoplasias Testiculares/epidemiologia , Criptorquidismo/complicações , Criptorquidismo/epidemiologia , Sêmen , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/etiologia
7.
PLoS One ; 18(5): e0284489, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37155673

RESUMO

BACKGROUND: The emergence and the spread of coronavirus disease (COVID-19) induced by the SARS-CoV-2 virus has multiple consequences in all countries around the world. Male germ cells of infertile patients which are shown to be vulnerable to many environmental conditions, could be particularly vulnerable to such an exceptional pandemic situation. We aimed through the current study to investigate the potential variations in sperm quality of infertile patients during the COVID-19 pandemic in Tunisia. METHODS: This was a cohort study including 90 infertile patients addressed to Laboratory of Cytogenetics and Reproductive Biology of Monastir Department of Maternity and Neonatology in Monastir, during the two first COVID-19 waves in Tunisia and who already have a spermogram before the pandemic period. RESULTS: We have pointed out a significant decrease in both total and progressive sperm motility during COVID-19 pandemic (p<0.0001 and p = 0.001 respectively). The percentage of morphologically abnormal spermatozoa increased from 90.99±7.38 to 93.67±4.55% during the pandemic (p< 0.001). The remaining sperm parameters were similar between the two compared timepoints. Interestingly, the univariate analysis didn't show any other associated factor to the observed impairment in sperm mobility and morphology. CONCLUSION: These data highlight the severe impact of the pandemic of the male reproductive health of hypofertile patients. Delaying infertility investigations and management after pandemic waves is recommended to hope a better gamete quality and hence to improve conception potential.


Assuntos
COVID-19 , Infertilidade Masculina , Humanos , Masculino , Feminino , Gravidez , Análise do Sêmen , Contagem de Espermatozoides , Infertilidade Masculina/epidemiologia , Pandemias , Motilidade dos Espermatozoides , Sêmen , Estudos de Coortes , COVID-19/epidemiologia , SARS-CoV-2 , Espermatozoides
8.
JBRA Assist Reprod ; 27(3): 507-513, 2023 09 12.
Artigo em Inglês | MEDLINE | ID: mdl-37257075

RESUMO

The microbiota is composed of numerous resident microorganisms, which contribute to the health and illness of the individual. When the microbiota is in dysbiosis, it can cause some pathological processes and in men it can be correlated with male infertility, so the present study does a systematic review, identifying whether there is a correlation between the microbiota and seminal quality. We analyzed 7 papers published in PubMed, Medline and the Cochrane library databases, in English and published between 2012 and 2022. In men with normal semen parameters, a higher prevalence of Lactobacillus. There was a higher prevalence of Prevotella in patients who had some seminal alteration. We conclude that the microbiota is correlated with seminal quality, since the decrease in Lactobacillus and the increase in other species is seen in infertile men.


Assuntos
Infertilidade Masculina , Microbiota , Humanos , Masculino , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/etiologia , Sêmen , Análise do Sêmen
9.
Sci Rep ; 13(1): 6819, 2023 04 26.
Artigo em Inglês | MEDLINE | ID: mdl-37100822

RESUMO

There are conflicting reports on trends of semen parameters from different parts of the globe. However, in recent times there is dearth of information on the trend in Sub-Saharan countries. Therefore, in this study we aimed at determining the trends in semen parameters in Nigeria and South Africa between 2010 and 2019. A retrospective study of semen analyses of 17,292 men attending fertility hospitals in Nigeria and South Africa in 2010, 2015 and 2019. Patients who had undergone vasectomy and those who had a pH less than 5 or greater than 10 were excluded from this study. The following variables were assessed: ejaculate volume, sperm concentration, progressive motility, total progressively motile sperm count (TPMSC), total sperm count, and normal sperm morphology. Between 2010 and 2019, significant trends of decreasing values were observed in normal sperm morphology (- 50%), and the ejaculatory volume (- 7.4%), indicating a progressive deterioration of the values in both countries. In Nigeria, there were significant decreases in progressive motility (- 87%), TPMSC (- 78%), and sperm morphology (- 55%) between 2010 and 2019 (P < 0.001). Spearman`s rank correlation revealed significant negative associations between age and morphology (ρ = - 0.24, P < 0.001), progressive motility (ρ = - 0.31. P < 0.001), and TPMSC (ρ = - 0.32, P < 0.001). Patients in South Africa were younger than those from Nigeria, with also a significantly higher sperm morphology, sperm concentration, progressive motility, total sperm count and TPMSC. Our findings provide a quantitative evidence of an alarming decreasing trend in semen parameters in Nigeria and South Africa from 2010 to 2019. It also proves that astheno- and teratozoospermia are the leading causes of male infertility in these regions. In addition to this, it also shows empirically that semen parameters decrease with advancement in age. These findings are the first report of temporal trends in semen parameters in Sub-Saharan countries, necessitating a thorough investigation on the underlying factors promoting this worrisome decline.


Assuntos
Infertilidade Masculina , Sêmen , Humanos , Masculino , Nigéria/epidemiologia , África do Sul/epidemiologia , Estudos Retrospectivos , Motilidade dos Espermatozoides , Análise do Sêmen , Contagem de Espermatozoides , Infertilidade Masculina/epidemiologia , Espermatozoides
10.
Niger J Clin Pract ; 26(3): 294-299, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37056102

RESUMO

Background: The impact of Chlamydia trachomatis on semen quality has been studied with varied results. Aim: To determine the prevalence of antichlamydial antibodies and their relationship with sperm quality among male partners of infertile couples in Enugu, South-East Nigeria. Materials and Methods: It was a cross-sectional study of infertile male partners of couples attending infertility clinics at the University of Nigeria Teaching Hospital (UNTH) Ituku-Ozalla, Enugu, Nigeria. Their sera were assayed for antichlamydial antibodies, and semen analysis and culture were done for each participant. Results: Two hundred and eighty-two (282) male partners of infertile couples were studied. Infertility was commoner among participants aged 40 years or more (45.1%) and was mainly of the "primary type" (62.1%). Antichlamydia antibody was detected in 156 (55.3%) participants and was significantly associated with sperm quality (P = 002; OR = 2.294; 95% CI = 1.36-3.88). Overall, 81 (28.7%) had abnormal sperm quality. The sperm count, progressive motility, and vitality were significantly lower in participants with abnormal sperm quality than those with normal sperm quality (P < 0.001) while morphology, volume, and liquefaction time did not differ significantly (P > 0.05). Staphylococcus aureus was the predominant organism isolated from culture (122/282, 43.3%) while Streptococcus species were the least (4/262, 1.4%). There was significantly more Staphylococcus aureus isolated from the semen of participants that were seropositive to antichlamydial antibodies than those that were seronegative (80/156, 51.3% vs. 42/126, 33.3%; OR = 2.105; 95% CI = 1.30-3.42; P = 0.003). Conclusion: The prevalence of antichlamydial antibodies among male partners of infertile couples in Enugu, Nigeria is high and there is a significant association with sperm quality, sperm count, and bacterial isolates in seminal culture. Male partners of infertile couples in Enugu should be screened for antichlamydial antibodies and appropriate treatment offered wherever indicated. There is a need for increased public awareness and advocacy campaigns on the impact of Chlamydia infection on male factor infertility. This primary preventive measure may help in reducing the burden of Chlamydia infection and male factor infertility.


Assuntos
Infecções por Chlamydia , Infertilidade Masculina , Masculino , Humanos , Sêmen/microbiologia , Análise do Sêmen , Nigéria/epidemiologia , Estudos Transversais , Espermatozoides , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/complicações , Infecções por Chlamydia/complicações
11.
Ethiop J Health Sci ; 33(1): 133-142, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36890937

RESUMO

Background: Chlamydia trachomatis, Ureaplasma parvum, and Mycoplasma genitalium are common sexually transmitted microorganisms. Our study aimed to determine the prevalence of C. trachomatis, U. parvum, and M. genitalium in infertile and fertile couples and the effect of these microorganisms on semen parameters. Materials and Methods: In this case-control study, samples were collected from 50 infertile couples and 50 fertile couples and were subjected to the routine semen analysis and Polymerase chain reaction (PCR). Results: C. trachomatis and U. parvum were detected in 5 (10%) and 6 (12%) of semen samples from infertile men. Also, out of 50 endocervical swabs from the infertile women, C. trachomatis and M. genitalium were detected in 7(14%) and 4 (8%) of swab specimens, respectively. In the control groups, all of the semen samples and endocervical swabs were negative. Also, in the group of infertile patients infected with C. trachomatis and U. parvum, sperm motility was lower than uninfected infertile men. Conclusions: The results of this study showed that C. trachomatis, U. parvum, and M. genitalium are widespread among the infertile couples in Khuzestan Province (Southwest of Iran). Also, our results showed that these infections can decrease the quality of semen. For the prevention of the consequences of these infections, we suggest a screening program for infertile couples.


Assuntos
Infecções por Chlamydia , Infertilidade Feminina , Infertilidade Masculina , Mycoplasma genitalium , Feminino , Humanos , Masculino , Ureaplasma , Sêmen , Chlamydia trachomatis , Ureaplasma urealyticum , Infertilidade Masculina/epidemiologia , Infertilidade Feminina/epidemiologia , Prevalência , Estudos de Casos e Controles , Motilidade dos Espermatozoides , Infecções por Chlamydia/epidemiologia
12.
Ann Biol Clin (Paris) ; 81(2)2023 03 15.
Artigo em Francês | MEDLINE | ID: mdl-36866812

RESUMO

Male and female infertility has become a worldwide public health problem. The global obesity epidemic has paralleled a decrease in semen quality. Yet, the association between body mass index (BMI) and sperm parameters remains controversial. The objective of this study is to determine the link between body mass index and seminal parameters. We made an observational study and retrospective analysis. Men who made semen analysis during the period of January 2015 to September 2021 in Reims University Hospital, were included. A total of 1 655 patients were recruited and separated into five groups according to BMI values. Second- and third-degree obesity had a significantly higher risk of having a pathological sperm count (p: 0,0038). Second- and Third-degree obesity was associated with a pathologic vitality (p: 0,012). No significant differences existed between sperm mobility and body mass index. Regarding low body mass index, a significant difference exists on the sperm morphology (p: 0,013). Sperm morphology is also impacted in overweight and obesity groups. The information of the couples on weight is necessary to improve sperm parameters, spontaneous pregnancies and efficacity of assisted reproductive technic.


Assuntos
Infertilidade Masculina , Análise do Sêmen , Masculino , Humanos , Feminino , Sêmen , Estudos Retrospectivos , Índice de Massa Corporal , Contagem de Espermatozoides , Infertilidade Masculina/epidemiologia , Obesidade/complicações , Obesidade/epidemiologia
13.
F1000Res ; 11: 125, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36405559

RESUMO

Male infertility is attributable to 50% of total infertility cases and about 30% of these cases remain idiopathic. In the Middle East and North Africa region (MENA), male infertility affects about 22.6% of men of reproductive age. Male infertility is caused by a variety of factors, including endocrine disruption, exposure to toxins, lifestyle, genetic and epigenetic modifications. Genetic modifications, including chromosomal abnormalities, chromosomal rearrangements, Y chromosome microdeletions and single-gene mutations, explain for about 10-15% of infertility cases. Since genetic aberration is a key player in the pathogenesis of male infertility, it is important to explore the impact in the MENA region due to the high incidence of male infertility. Therefore, the current study aims to systematically analyse the literature regarding the impact and common causes of male infertility in the MENA region. To achieve this aim, a comprehensive literature search was performed on PubMed, Google Scholar, and Science Direct databases. Following the search, a total of 126 articles was retrieved, of which 12 were duplicates and another 69 articles did not meet the inclusion criteria, totaling the exclusion of 81 articles. Studies excluded were those that had patient populations originating outside the MENA region, review articles, non-English written articles, or studies where the patient population was under 18 years of age. Findings showed that the frequent genetic aberration leading to male infertility in these regions include Y chromosome microdeletions, gene polymorphisms or copy number variations, mitochondrial microdeletions and other genetic deletions or mutations. In lieu of this, diverse clinical genetic tests should be made available for the proper diagnosis of male infertility.


Assuntos
Variações do Número de Cópias de DNA , Infertilidade Masculina , Humanos , Masculino , Adolescente , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/genética , África do Norte/epidemiologia , Oriente Médio/epidemiologia
14.
Adv Gerontol ; 35(4): 485-491, 2022.
Artigo em Russo | MEDLINE | ID: mdl-36401856

RESUMO

According to the Russian Society of Urologists, the frequency of infertility in marriage in the Russian Federation is 8-17,2%; half of the cases are associated with the male factor. Among the risk factors for the development of male infertility, there are mainly medical reasons, lifestyle factors and negative environmental factors. Despite the fact that the problem of infertility is addressed by men of different ages, from youth to the elderly, the correction of risk factors is usually carried out without taking into account the age of the patient, which makes it difficult to develop a personalized strategy for the treatment or prevention of infertility. The aim of the study was to study the structure of the leading risk factors for the development of infertility in men from infertile couples, to identify and characterize their age-associated features. The analysis of the medical histories of 1 198 men from infertile couples and the collection of information on all available risk factors for infertility were carried out. The analysis of age features was performed by dividing the sample into 5 age groups: 1st (n=271) - men ≤29,9 years; 2nd (n=415) - 30-34,9 years; 3rd (n=291) - 35-39,9 years; 4th (n=141) - 40-44,9 years; 5th (n=80) - ≥45 years. It was shown that in the general sample of medical causes, factors associated with chronic inflammation predominate: sexually transmitted infections (STIs) - 54%; prostatitis - 32%; obesity - 27%; from non-medical: alcohol - 73%; stress - 47%; smoking - 41%. With increasing age, the frequency of obesity, STIs, prostatitis, hepatitis B/C, mumps increases statistically significantly, while the most unfavorable group of men is 40-45 years old for factors such as STIs, hepatitis B/C and mumps, and the group of men over 45 years old for factors such as obesity and prostatitis.


Assuntos
Hepatite B , Infertilidade Masculina , Caxumba , Prostatite , Infecções Sexualmente Transmissíveis , Humanos , Masculino , Idoso , Adolescente , Prostatite/complicações , Caxumba/complicações , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/etiologia , Fatores de Risco , Infecções Sexualmente Transmissíveis/complicações , Obesidade/complicações , Hepatite B/complicações
15.
Reprod Fertil Dev ; 34(14): 905-919, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-36041737

RESUMO

Although Male Infertility (MI) in Arabs is fairly common, there is a dearth in published reports of genetic epidemiology of MI among Arabs. This study aimed to review the existing literature reporting the variants that are associated with MI in the 22 Arab countries. We searched four literature databases (PubMed, Science Direct, Scopus, and Web of Science) from the time of inception until April 2021 using broad search terms to capture all reported genetic data related to Arab patients with MI. Our search strategy identified 3488 articles, of these 34 were eligible for this systemic review. We retrieved data from nine Arab Countries (Tunisia, Algeria, Morocco, Syria, Jordan, Yemen, Iraq, Egypt and Lebanon). Only 2597 patients and 10 families with MI were identified and compared to 3721 controls. Our search strategy identified 25 genes, including 89 variants: 52.7% are shared with other ethnic groups, 41.7% are unique to Arab patients, and 5.6% are common among Arabs. Azoospermia (41.18%) was the most frequently reported phenotype. This is the first systematic review to capture reported variants associated with MI among the Arab populations. Although Arabs seem to share genetic profiles with other ethnicities, they have distinctive genotype-phenotype correlations for some of genetic variants.


Assuntos
Árabes , Infertilidade Masculina , Árabes/genética , Estudos de Associação Genética , Humanos , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/genética , Masculino , Oriente Médio/epidemiologia , Epidemiologia Molecular
16.
JBRA Assist Reprod ; 26(4): 627-630, 2022 Nov 09.
Artigo em Inglês | MEDLINE | ID: mdl-35916450

RESUMO

Infertility is a major problem in modern society that affects a significant number of couples around the world. Heavy metals and a number of other factors have been causally linked to infertility. The aim of this study was to determine the effect of heavy metals lead, cadmium, and copper on the epidemiology of male and female infertility. Searches for articles published from 1982 to 2020 using related keywords such as male and female infertility and heavy metals were performed in scientific databases PubMed, Google Scholar, Science Direct, and others. The results showed that, in recent years, the number of infertile individuals has increased. Various environmental, occupational, and genetic factors have been described as potential causes. Heavy metals lead, cadmium, and copper cause infertility in couples through various mechanisms, such as changes in sperm motility factors, decreased semen quality, or effects on the egg. Exposure to physical phenomena such as radiation (ionized or microwave) and heat; stress and mental disorders; chemicals from cigarettes, respiratory pollutants (lead), insecticides and pesticides; anesthetic gases; and mercury and cytotoxic drugs may also contribute to the onset of infertility.


Assuntos
Infertilidade Feminina , Infertilidade Masculina , Metais Pesados , Masculino , Feminino , Humanos , Cádmio/toxicidade , Análise do Sêmen , Cobre , Infertilidade Feminina/induzido quimicamente , Infertilidade Feminina/epidemiologia , Motilidade dos Espermatozoides , Metais Pesados/toxicidade , Infertilidade Masculina/induzido quimicamente , Infertilidade Masculina/epidemiologia
17.
Andrologia ; 54(10): e14539, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35914741

RESUMO

Varicocele is the most common reversible cause of male infertility, affecting up to 20% of healthy men and 40% of men with primary infertility. The objective of this study was to investigate the prevalence of varicocele in men evaluated for infertility, and to determine rates of subsequent varicocele repair. Since reproductive endocrinologists are the first specialists seen for male infertility care in North America, we hypothesized that varicocele would be underdiagnosed when compared to its reported prevalence among men with infertility. TriNetX, a large, multicenter electronic health record (EHR) database was queried to establish a cohort of all men (above 18 years of age) with a diagnosis of male infertility. This cohort was used to identify those with ensuing varicocele diagnosis. Men who received varicocelectomy or venous embolization after a diagnosis of varicocele were then identified. Out of 101,309 men with a diagnosis of male infertility in the network, only 9768 (9.6%) had a diagnosis of varicocele. Mean age of men with varicocele was 34. Varicocelectomy or venous embolization was performed in 1699 (20.2%) and 69 (0.76%) of men with varicocele, respectively. In this cross-sectional EHR study, varicocele was underdiagnosed in men evaluated for infertility when compared with prior epidemiological studies.


Assuntos
Infertilidade Masculina , Varicocele , Estudos Transversais , Registros Eletrônicos de Saúde , Humanos , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/etiologia , Masculino , Varicocele/complicações , Varicocele/epidemiologia , Veias
18.
Andrologia ; 54(10): e14535, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35838446

RESUMO

To explore the association between male infertility and hypertension risk, a meta-analysis and systematic review was conducted. Observational studies were sought in Medline, PubMed, EMBASE, Web of Science, and China National Knowledge Infrastructure up to April 30, 2021. Two independent reviewers selected available studies and extracted the data. The association between male infertility and hypertension risk was estimated by calculating the relative risk (RR) and 95% confidence interval (95% CI) using Stata12.0 statistical software. A total of seven studies were included in this meta-analysis, including 102,152 patients and 636,645 healthy individuals. The results demonstrated that male infertility was significantly associated with increased hypertension incidence (RR = 1.08; 95% CI 1.02-1.14; p = 0.004), with moderate-quality evidence. A subgroup analysis based on region showed that a positive association was observed in Europe but not the United States or Asia. This positive association was further confirmed in a cohort study, but not in a case-control study. After adjusting for potential confounders, male infertility was still significantly associated with hypertension risk (RR = 1.06, 95% CI 1.03-1.09). In conclusion, our findings suggest that male infertility increases the risk of hypertension incidence. However, further studies are needed to provide more conclusive evidence.


Assuntos
Hipertensão , Infertilidade Masculina , Estudos de Casos e Controles , Estudos de Coortes , Humanos , Hipertensão/complicações , Hipertensão/epidemiologia , Incidência , Infertilidade Masculina/epidemiologia , Masculino
19.
Andrology ; 10(7): 1250-1271, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35793270

RESUMO

BACKGROUND: The environment plays a key role in male infertility, changing the incidence in various populations, and pesticides are one of the most studied hazards. The use of the latter has never decreased, jeopardizing the safety of workers and the general population. OBJECTIVE: Our purpose was to summarize the results of studies discussing the association between pesticides and male fertility. METHODS: A comprehensive literature search was performed through MEDLINE via PubMed, Scopus, and Web of Science. Only human studies were considered. Semen parameters and DNA integrity were considered to evaluate the effect of pesticides on men. RESULTS: A total of 64 studies that investigated their impact in terms of semen parameters (51 studies) and chromatin and DNA integrity (25 studies) were included. The most frequently affected parameters were total sperm count, sperm motility, and sperm morphology, although a reduction in ejaculate volume and concentration occur in several cases. A tangible worsening of semen quality was associated with organochlorines and organophosphates. Furthermore, pesticide exposure, especially pyrethroids, was related to a higher DNA fragmentation index and chromosome aneuploidy in most articles. CONCLUSION: The epidemiological evidence supports the association between pesticides and male fertility for workers and the exposed population in terms of semen quality, DNA fragmentation, and chromosome aneuploidy.


Assuntos
Infertilidade Masculina , Exposição Ocupacional , Praguicidas , Piretrinas , Aneuploidia , Cromatina , DNA , Fertilidade , Humanos , Infertilidade Masculina/induzido quimicamente , Infertilidade Masculina/epidemiologia , Masculino , Exposição Ocupacional/efeitos adversos , Organofosfatos , Praguicidas/toxicidade , Piretrinas/farmacologia , Sêmen , Análise do Sêmen , Contagem de Espermatozoides , Motilidade dos Espermatozoides , Espermatozoides
20.
Sci Rep ; 12(1): 12969, 2022 07 28.
Artigo em Inglês | MEDLINE | ID: mdl-35902712

RESUMO

The link between sexual dysfunction and male infertility has been well established. In addition to male infertility, male patients with couple pregnancy loss and preconception care are the most frequent reasons for the treatment of andrology outpatients. However, there is a paucity of information simultaneously investigating male sexual dysfunction in these males with different reproduction situations. A cross-sectional study was performed in consecutive series of 1256 participants, including 509 men with infertility, 437 couples with pregnancy loss, and 310 men for preconception care. All men completed a questionnaire on baseline demographic information, sexual behavior characteristics and validated research tools, including Premature Ejaculation Diagnostic Tool, seven-item Generalized Anxiety Disorder Scale, and International Index of Erectile Function. The prevalence of erectile dysfunction and premature ejaculation was 30.6%, 20.8% in the infertility population and 27.0%, 18.5% in pregnancy loss individuals, was much lower in preconception care men, at 9.3%, 11.9% (p < 0.05), respectively. Infertility and pregnancy loss couples were more biased toward choosing timed intercourse than preconception care couples, with rates of 19.6% in Infertility group and 17.4% in pregnancy loss groups, versus 10.0% (p < 0.05) in preconception care couples. The infertile and pregnancy loss men also reported higher rate of anxiety state than the preconception care group. The prevalence of erectile dysfunction increased gradually with the duration of infertility and the frequency of pregnancy loss, with a highest odds ratio of 7.346 (95% CI:4.329-12.467; P < 0.001) among men with ≥5 years of infertility, 6.282 (95% CI:3.446-11.453; P < 0.001) among couples ≥3 pregnancy loss when compared with preconception care group. The prevalence of erectile dysfunction, premature ejaculation and timed intercourse were comparable in pregnancy loss and infertile males, were all noticeably higher than preconception care group. There was also a trend toward a higher incidence of erectile dysfunction with longer duration of infertility or the more frequent of pregnancy loss.


Assuntos
Infertilidade Masculina , Disfunções Sexuais Fisiológicas , Aborto Espontâneo/epidemiologia , Estudos Transversais , Disfunção Erétil/epidemiologia , Feminino , Humanos , Infertilidade Masculina/epidemiologia , Masculino , Cuidado Pré-Concepcional , Gravidez , Ejaculação Precoce , Prevalência , Disfunções Sexuais Fisiológicas/epidemiologia
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