1.Impacts of advanced male age on sperm DNA methylation and subsequent development of embryos and offspring.
Wen LIU ; Ge FANG ; Xiao LI ; Shao-Ming LU
National Journal of Andrology 2025;31(2):172-176
Male factors contribute to infertility at roughly the same rate as female factors, and sperm DNA methylation in advanced-aged males directly affects semen parameters and significantly reduces fertility and increases the miscarriage rate of spouses. Many adverse outcomes of reproductive health are associated with advanced reproductive age of men, and few studies are reported on the influence of paternal age on the health of the offspring. The role of advanced age in human sperm DNA methylation variation and mechanism of its subsequent influence on the offspring health remain unclear. Attention should be paid to the influence of reproductive age on pregnancy outcomes in this population. This reviews focuses on the impacts of advanced male age on sperm DNA methylation and consequently on reproductive outcomes and the offspring, with elucidation of its underlying mechanisms, aiming to provide some more useful evidence for solving related clinical problems.
Humans
;
DNA Methylation
;
Male
;
Spermatozoa/metabolism*
;
Female
;
Pregnancy
;
Paternal Age
;
Pregnancy Outcome
;
Embryonic Development
2.Clinical efficacy of microscopic varicocelectomy versus laparoscopic varicocelectomy in the treatment of varicocele with male infertility.
Yu PAN ; Ling FU ; Xiao-Jing GUO ; Wen-Xin LI ; Lin QIAN ; Lei YU ; Hong-Qiang WANG ; Kai-Shu ZHANG ; Shen-Qian LI ; Qiang LI ; Pei-Tao WANG ; Han-Shu WANG ; Tao JING
National Journal of Andrology 2025;31(4):333-337
OBJECTIVE:
To compare the clinical efficacy between microscopic varicocelectomy and laparoscopic varicocelectomy in the treatment of varicocele(VC)with male infertility.
METHODS:
A total of 307 patients who were diagnosed with VC complicated with male infertility and admitted to the Affiliated Hospital of Qingdao University from October 2018 to October 2022 were recruited for retrospective analysis. The patients were divided into the microscopic group (180 cases) and laparoscopic group (127 cases) according to the surgery method. The pre- and postoperative clinical data of these two groups were analyzed, including the degree of dilatation and reflux time of internal spermatic vein,hemodynamic parameters of testicular capsular artery,proportion of progressive motility spermatozoa (PR), concentration of spermatozoa, proportion of normal morphology sperm,the pregnancy outcome of spouses and the incidence of complications related with surgery within 2 years postoperatively.
RESULTS:
All the surgeries for the 307 patients in this study were successful. There was no significant difference in operation time, hospitalization time and management expenses between the microscopic group and the laparoscopic group (P>0.05). Compared to the patients in laparoscopic group, the patients in the microscopic group received a better improvement in venous diameter, reflux time of spermatic veins and hemodynamic parameters of testicular capsular artery (P<0.05). Moreover, the semen analysis showed that the PR, spermatozoa concentration and proportion of normal morphology sperm in the microscopic group were also obviously increased than those in the laparoscopic group (P<0.05). During the 2-year follow-up period, the conception rate of spouses in the microscopic group was 67.2%, while only 47.2% in the laparoscopic group, in which the difference was statistically significant (P<0.05). Besides, the time-to-pregnancy ( TTP ) within 2 years postoperatively in the microscopic group was significantly shorter than that in the laparoscopic group(P<0.05). Meanwhile, the incidence of adverse pregnancy outcomes in the microscopic group was also significantly lower than that in the laparoscopic group (P<0.05). It is worth mentioned that the spontaneous conception rate of spouses with successful pregnancy in the microscopic group was also significantly higher than that in the laparoscopic group (P<0.05). Severe complication such as testicular atrophy, bleeding and infection did not appear in both of two groups. However, the incidences of testicular hydrocele and recurrence of VC postoperatively in the laparoscopic group were significantly higher than those in the microscopic group (P<0.05).
CONCLUSION
Both microscopic varicocelectomy and laparoscopic varicocelectomy can be applied to the management of VC combined with male infertility. But microscopic varicocelectomy showed better clinical efficacy in improving the testicular hemodynamic parameters, semen quality, pregnancy outcome and postoperative complications, which is worthy of further clinical applications.
Humans
;
Male
;
Varicocele/complications*
;
Laparoscopy
;
Infertility, Male/etiology*
;
Retrospective Studies
;
Adult
;
Microsurgery
;
Treatment Outcome
;
Pregnancy
;
Female
3.Effect of Y chromosome microdeletion on pregnancy outcome of intracytoplasmic sperm injection.
Qi-Min TIAN ; Xiao-Dong ZHAO ; Ting-Ting JI ; Xiao-Ling MA
National Journal of Andrology 2025;31(6):499-504
OBJECTIVE:
To analyze the effect of Y chromosome AZFc microdeletion on pregnancy outcome of intracytoplasmic sperm injection (ICSI).
METHODS:
From 2016 to 2023, 6 765 cases of oligozoospermia in our hospital were selected as the research objects. The results of Y chromosome microdeletion test were retrospectively analyzed. According to the inclusion exclusion criteria and the principle of propensity distribution 1∶2, 180 patients were included in the study. Sixty patients with Y chromosome AZFc microdeletion and ICSI assisted pregnancy were enrolled into the experimental group. The other 120 patients without Y chromosome microdeletion and ICSI assisted pregnancy were included in the control group. Baseline characteristics, five male sex hormones, laboratory embryo culture and pregnancy outcomes were compared between the two groups.
RESULTS:
There was no significant difference in male age, female age, infertility years, gravidity and parity between the two groups (P>0.05). There was no significant difference in the five sex hormones of men (P>0.05). Except for transplantable embryos (P<0.05), there was no significant difference in other indicators in the process of embryo culture. There was no difference in pregnancy outcome indicators between the two groups except for the preterm birth rate (P<0.05).
CONCLUSION
ICSI assisted pregnancy with Y chromosome AZFc microdeletion has no significant effect on pregnancy outcome. And close follow-up of offspring is required.
Humans
;
Sperm Injections, Intracytoplasmic
;
Pregnancy
;
Female
;
Chromosomes, Human, Y
;
Male
;
Chromosome Deletion
;
Pregnancy Outcome
;
Retrospective Studies
;
Sex Chromosome Disorders of Sex Development
;
Sex Chromosome Aberrations
;
Adult
;
Infertility, Male/genetics*
;
Oligospermia/genetics*
;
Pregnancy Rate
4.Clinical effect of Huotujiji prescription on patients with asthenospermia of spleen-kidney yang-deficiency type.
Yi-Li CAI ; Hong-Ping SHEN ; Li WANG ; Jia-Yi SONG ; Ya-Hua LIU ; Yi YU ; Xue-Qin CHEN
National Journal of Andrology 2025;31(9):827-831
OBJECTIVE:
To observe the effectiveness and safety of Huotujiji prescription for patients with asthenospermia of spleen-kidney yang-deficiency.
METHODS:
Patients with spleen-kidney-yang deficiency type of asthenospermia were divided into two groups by randomized control method. The patients in the control group were treated with L-carnitine oral solution alone. And the patients in experimental group were treated with Huotujiji prescription. Semen volume, sperm concentration, PR, TCM symptom score and spouse pregnancy were compared between the two groups before and after treatment.
RESULTS:
A total of 115 patients were included in the study, with 55 in the experimental group and 60 in the control group. In the experimental group, the sperm concentration before and after treatment were (160.71±53.7)×106/mL, (187.19±41.89)×106/mL, and PR were (20.37±9.42)%, (26.7±6.92)%, respectively. PR+NP were (32.06±8.49)% and (34.89±7.25)%. After the treatment, the sperm motility of both groups significantly improved compared to pre-treatment levels (P<0.05). And the experimental group's sperm concentration also showed a significant increase after the treatment (P<0.05). The pregnancy rate of spouses in the control group was 11.67%, which was 29.09% in the experimental group. The pregnancy rate of the spouses in the two groups showed a statistically significant difference (P<0.05). After 12weeks of treatment, the Traditional Chinese Medicine (TCM) symptom scores in the control group did not decrease significantly compared to those before treatment (P> 0.05). In contrast, the TCM symptom scores in the experimental group decreased significantly after treatment (P<0.05). Moreover, compared with the control group, the TCM symptom scores of the experimental group decreased significantly after treatment (P<0.05).
CONCLUSION
Huotujiji prescription can safely and effectively improve the sperm quality and vitality of patients with spleen-kidney-yang deficiency type of asthenospermia, improve the symptoms of patients, and increase the pregnancy rate of their spouses, which is worthy of clinical promotion.
Humans
;
Male
;
Drugs, Chinese Herbal/therapeutic use*
;
Adult
;
Yang Deficiency/drug therapy*
;
Asthenozoospermia/drug therapy*
;
Female
;
Pregnancy
;
Phytotherapy
;
Sperm Motility
;
Young Adult
;
Spleen
;
Treatment Outcome
;
Sperm Count
5.Association between maternal distress during pregnancy and lower 5-min-Apgar score of the offspring: the Japan Environment and Children's Study.
Gita Nirmala SARI ; Satoyo IKEHARA ; Kanami TANIGAWA ; Yoko KAWANISHI ; Ehab S ESHAK ; Tadashi KIMURA ; Tomotaka SOBUE ; Hiroyasu ISO
Environmental Health and Preventive Medicine 2025;30():25-25
BACKGROUND:
Although the influence of maternal distress during pregnancy on newborn Apgar scores has been studied in various populations, there is limited research specifically addressing this issue among Asian women. This study of Japanese women aims to investigate the association between maternal distress during pregnancy and the risk of a low 5-min-Apgar score among newborns.
METHODS:
We analyzed data from 87,765 mother-newborn pairs in the Japan Environment and Children's Study. Using multivariable logistic regression, we estimated odds ratios (OR) and 95% confidence intervals (CI) for low Apgar scores (<7) at 5 minutes about maternal distress during early and mid-late pregnancy, as measured by the Kessler Psychological Distress Scale (K6). Apgar scores were obtained from newborns' medical records.
RESULTS:
A higher risk of low Apgar score in newborns at 5 minutes was found in mothers with moderate to severe distress than in those with low distress during mid-late pregnancy. The adjusted OR (95% CI) was 1.22 (1.05-1.42) for moderate distress (K6 = 5-12) and 1.42 (1.00-2.01) for severe distress compared to low distress (p for trend = 0.002). The positive association between maternal distress and the risk of low Apgar score was observed in preterm birth (<37 weeks) and low birth weight (<2,500 g) but not in term birth and normal birth weight.
CONCLUSION
Maternal distress during mid-late pregnancy was positively associated with the risk of low Apgar score of newborns, specifically in preterm birth and low birth weight.
Humans
;
Female
;
Pregnancy
;
Japan/epidemiology*
;
Apgar Score
;
Infant, Newborn
;
Adult
;
Stress, Psychological/epidemiology*
;
Male
;
Young Adult
;
Pregnancy Complications/epidemiology*
;
Mothers/psychology*
;
Risk Factors
6.Impact of maternal body mass index and gestational comorbidities on the birth prevalence of orofacial clefts in the Japan Environment and Children's Study.
Shinobu TSUCHIYA ; Masahiro TSUCHIYA ; Haruki MOMMA ; Masatoshi SAITO ; Chiharu OTA ; Kaoru IGARASHI
Environmental Health and Preventive Medicine 2025;30():86-86
BACKGROUND:
An increased prevalence of cleft lip and/or palate (CL/P), a major congenital anomaly, has been observed in the offspring of women with elevated body mass index (BMI) before pregnancy. Likewise, gestational comorbidities, such as hypertension and diabetes mellitus, also increase the risk of CL/P; however, the risk linked to the coexistence of these conditions in women with higher BMI on birth prevalence of CL/P remains unclear. This study focused on the combined effects of a high BMI before pregnancy and gestational comorbidities on the birth prevalence of CL/P.
METHODS:
Among 98,373 live births from the Japan Environment and Children's Study (JECS), a nationwide birth cohort, 255 mothers of infants with CL/P (74, 112, and 69 infants born with cleft lip, cleft lip and palate, and isolated cleft palate, respectively) were included in the analyses. The association of CL/P birth prevalence with pre-pregnancy BMI and gestational comorbidities (hypertension and diabetes) was examined using multivariate logistic regression analyses after multiple imputations, with adjustments for several maternal (age at delivery, smoking habits, and alcohol intake) and child-related (sex and prevalence of other congenital diseases) variables, obtained through medical record transcriptions and self-reports on JECS transcription forms.
RESULTS:
Higher prevalence rates of overweight, gestational hypertension, and gestational diabetes mellitus were found in mothers of infants with CL/P (16.1%, 6.3%, and 4.7%, respectively) than in the control group (10.4%, 3.1%, and 3.1%, respectively). The odds ratio [95% confidence interval] for childbirth with CL/P was increased in mothers with high BMI before pregnancy (1.58 [1.11-2.24]). Furthermore, gestational hypertension and diabetes coexisting with high BMI additionally increased the odds ratios for childbirth with CL/P (2.91 [1.28-6.61] and 2.12 [0.87-5.19], respectively).
CONCLUSION
High maternal BMI, particularly when accompanied by gestational hypertension, was significantly associated with an increased prevalence of childbirth with CL/P.
Humans
;
Female
;
Cleft Lip/etiology*
;
Cleft Palate/etiology*
;
Pregnancy
;
Japan/epidemiology*
;
Prevalence
;
Body Mass Index
;
Adult
;
Male
;
Infant, Newborn
;
Comorbidity
;
Diabetes, Gestational/epidemiology*
;
Risk Factors
;
Young Adult
;
Birth Cohort
7.Association between maternal blood lead levels and prevalence of dental caries in the primary dentition of children.
Yoshie NAGAI-YOSHIOKA ; Ryota YAMASAKI ; Reiko SUGA ; Mayumi TSUJI ; Reiji FUKANO ; Kiyoshi YOSHINO ; Seiichi MOROKUMA ; Wataru ARIYOSHI ; Masanori IWASAKI
Environmental Health and Preventive Medicine 2025;30():92-92
BACKGROUND:
Dental caries is a chronic childhood disease and one of the most prevalent public health problems worldwide. Lead is a heavy metal that is taken up by the teeth and bones. However, the association between lead exposure during pregnancy, when the tooth germs are formed, and the prevalence of dental caries in the primary dentition remains unclear. This study aimed to examine the association between maternal blood lead levels and the prevalence of dental caries in the primary dentition of children.
METHODS:
This cross-sectional study was conducted as an Adjunct Study to the Japan Environment and Children's Study (JECS), which is an ongoing nationwide birth-cohort study. Among children participating in the JECS at the University of Occupational and Environmental Health Sub-Regional Center, those aged 7-8 years underwent oral examination and questionnaire administration. The dft (i.e., sum of the number of decayed and filled primary teeth) was then determined. The dft numerically expresses the dental caries prevalence in the primary dentition (larger value indicates more prevalent dental caries). Poisson regression analyses with robust standard errors were performed to evaluate the association between maternal blood lead levels during pregnancy, measured using frozen samples, and the dft.
RESULTS:
The study included 139 children, of whom 54.7% were girls, and 89.2% were 7 years old. The median maternal blood lead level was 6.1 ng/g (25-75 percentile, 5.0-7.3). The median dft was 0 (25-75 percentile, 0-4). After adjusting for covariates including age, sex, and oral health status and behavior, maternal blood lead levels were significantly associated with increased dft (prevalence ratio, 1.6; 95% confidence interval, 1.3-1.8; per one standard deviation increase in natural log-transformed maternal blood lead levels).
CONCLUSIONS
This study found an association between maternal blood lead levels and the prevalence of dental caries in the primary dentition of children aged 7-8 years. Maternal exposure to lead during mid- to late-term pregnancy may affect the caries susceptibility of children after birth.
Humans
;
Lead/blood*
;
Female
;
Dental Caries/epidemiology*
;
Prevalence
;
Tooth, Deciduous
;
Male
;
Japan/epidemiology*
;
Child
;
Cross-Sectional Studies
;
Pregnancy
;
Adult
;
Maternal Exposure/adverse effects*
;
Environmental Pollutants/blood*
;
Prenatal Exposure Delayed Effects/epidemiology*
8.Severe malnutrition during pregnancy complicated with acute pyelonephritis causing sepsis, refractory septic shock and multiple organ failure: A case report.
Fangfei XIE ; Hong QIAO ; Boya LI ; Cui YUAN ; Fang WANG ; Yu SUN ; Shuangling LI
Journal of Peking University(Health Sciences) 2025;57(1):202-207
This study reports the diagnosis and treatment of a 26-year-old pregnant woman with severe malnutrition combined with acute pyelonephritis causing sepsis, refractory septic shock and multiple organ failure. A female patient, 26 years old, was admitted to hospital mainly due to "menelipsis for more than 19 weeks, nausea and vomiting for 20 days, fever with fatigue for 3 days". At the end of 19 weeks of intrauterine pregnancy, the patient presented with fever accompanied by urinary tract irritation. Laboratory tests showed elevated inflammatory indicators, and ultrasonography showed bilateral pelvicalyceal dilation. She was diagnosed with acute pyelonephritis, sepsis, acute kidney injury (AKI) and severe malnutrition. After a whole-hospital consultation, the patient was treated with meropenem and vancomycin as antimicrobial therapy, and bilateral nephrostomy drainage was performed simultaneously. After that, the patient suffered a sudden decrease in blood pressure, blood oxygen saturation, and rapid heart rate. Septic shock with multiple organ dysfunction was considered, and she was transferred to intensive care unit (ICU) immediately. After the patient was transferred to ICU, emergency tracheal intubation and ventilator-assisted ventilation were performed. Rapid fluid resuscitation was administered for the patient. While pulse indicator continuous cardiac output (PICCO) monitoring was performed, norepinephrine, terlipressin, and methylene blue were administered to maintain peripheral vascular resistance. Since the patient developed septic cardiomyopathy and cardiogenic shock later, levosimendan and epinephrine were admi-nistered to improve cardiac function. While etiological specimens were delivered, meropenem, teicoplanin and caspofungin were given as initial empiric antimicrobial therapy. Unfortunately, the intrauterine fetal death occurred on the night of admission to ICU. On the 3rd day of ICU admission, a still-born child was delivered vaginally with 1/5 defect of the fetal membrane. On the 6th day of ICU admission, the patient had fever again with elevated inflammatory indicators. After excluding infection in other parts, intrau-terine infection caused by incomplete delivery of fetal membrane was considered. Then emergency uterine curettage was performed and the infection gradually improved. Later the laboratory results showed that the nephrostomy drainage was cultured for Escherichia coli and uterine, cervical and vaginal secretions were cultured for Candida albicans. Due to severe infection and intrauterine incomplete abortion, the patient developed disseminated intravascular coagulation (DIC). Active antimicrobial therapy and blood product supplement were given. However, the patient was critically ill with significant decrease in hemoglobin and platelets combined with multiple organ failure. Thrombotic microangiopathy (TMA) was not excluded yet, so plasma exchange was performed for the patient in order not to delay treatment. The patient underwent bedside continuous renal replacement therapy (CRRT) for AKI. The patient was complicated with acute liver injury, and the liver function gradually returned to normal after liver protection, antimicrobial therapy and other treatments. Due to the application of large doses of vasoactive drugs, the extremities of the patient gradually developed cyanosis and ischemic necrosis. Local dry gangrene of the bilateral toes remained at the time of discharge. In general, the patient suffered from septic shock, cardiogenic shock, combined with DIC and multiple organ dysfunction. After infection source control, antimicrobial therapy, uterine curettage, blood purification treatment, nutritional and metabolic support, the patient was discharged with a better health condition.
Humans
;
Female
;
Pyelonephritis/complications*
;
Pregnancy
;
Adult
;
Multiple Organ Failure/etiology*
;
Shock, Septic/etiology*
;
Sepsis/etiology*
;
Pregnancy Complications
;
Pregnancy Complications, Infectious
;
Malnutrition/complications*
9.Pregnancy complicated by patent urachus: A case report.
Junjuan YANG ; Lei ZHANG ; Yan ZHANG
Journal of Peking University(Health Sciences) 2025;57(2):393-395
To improve clinicians' understanding, and to explore the diagnosis and treatment of pregnancy complicated with patent urachus. The clinical symptoms, ultrasound images, and delivery outcome of the pregnancy complicated with patent urachus were reported, and the literature was reviewed. The patient had umbilical leakage as a young child occasionally, the symptom of leakage was not obvious after she was 10 years old, and there was no asymptomatic before pregnancy and in the first and second trimesters. Umbilical leakage was present at gestational 33 weeks, and ultrasound showned a tubular structure (0.7 cm in width) was connected between the top of the bladder and the umbilicus, and there was anechoic areas inside. The pregnancy complicated with patent urachus was diagnosed. The patient was checked regularly, and kept the umbilicus clean and dry. Premature rupture of membranes occured at gestational 39 weeks 4 days. The patient was admitted to the obstetrics department, and she deliveried finally. After delivery, the symptoms of umbilical leakage urine relieved, and an elective resection of abnormal urachus was planned. The patent urachus creates a tube connection between the umbilicus and the anterosuperior wall of the bladder, it was termed an median umbilical ligament at birth as usual, which still communicated with the bladder after birth. The main clinical manifestations were umbilical leak and infection, which were the main diagnostic basis. Ultrasound, CT and MRI were important auxi-liary examination methods.The patients with symptoms in the neonatal and early childhood period were managed actively and had the potential for self resolution, especially for the children younger than 1 year. Therefore, patients under 1 year of age were offered surgery only if they had recurrent infections or failed to selfresolve. It is recommended to remove abnormal urachus before pregnancy for the women complica-ted with patent urachus. If the patent urachus was found during pregnancy, the umbilicus should be kept clean and dry to avoid infection. The pregnancy complicated with patient urachus is not contraindicated to vaginal delivery.
Humans
;
Female
;
Pregnancy
;
Urachus/surgery*
;
Pregnancy Complications/surgery*
;
Adult
;
Infant, Newborn
10.Power Spectral Parameterization of the EEG Alpha for Analgesia.
Haidi WU ; Yan WANG ; Chang'an A ZHAN ; Hongfei ZHANG ; Feng YANG
Chinese Journal of Medical Instrumentation 2025;49(5):494-500
Neural oscillatory changes play a critical role in pain and analgesia research. Previous studies on pain-related neural oscillations have primarily utilized electroencephalogram (EEG) power spectral analysis, revealing a strong correlation between alpha ( α) power and subjective pain perception. However, alpha power may be influenced by the baseline of the power spectrum, making it difficult to accurately capture the true changes in alpha oscillations. This study employed power spectral analysis and further applied a power spectral parameterization method, which decomposed the power spectrum into periodic and aperiodic components, to compare EEG α power in 50 primiparous women who underwent severe pain during the first stage of labor before and after epidural analgesia. The results indicated no significant differences in α power between pre- and post-analgesia conditions. However, following power spectral parameterization, the aperiodic component of the EEG significantly decreased after analgesia, whereas the periodic component of α power showed a significant increase. This study not only validates the effectiveness and validity of the power spectral parameterization method in analgesia research but also uncovers the differential regulatory mechanism by which analgesia modulates the periodic and aperiodic components of α oscillations.
Humans
;
Electroencephalography/methods*
;
Female
;
Adult
;
Alpha Rhythm
;
Pregnancy
;
Young Adult
;
Analgesia, Epidural

Result Analysis
Print
Save
E-mail