Transsphenoidal surgery for prolactinomas in male patients: a retrospective study / 亚洲男科学杂志(英文版)

Male patients with prolactinomas usually present with typical hyperprolactinemia symptoms, including sexual dysfunction and infertility. However, clinical factors related to sexual dysfunction and surgical outcomes in these patients remain unclear. This study aimed to investigate the outcomes of male patients with prolactinomas after transsphenoidal surgery and the risk factors affecting sexual dysfunction. This study was conducted on 58 male patients who underwent transsphenoidal surgery for prolactinomas between May 2014 and December 2020 at the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China. We evaluated the sexual function of patients before and after surgery through International Index of Erectile Function-5 scores, libido, and frequency of morning erection. Of the 58 patients, 48 (82.8%) patients had sexual intercourse preoperatively. Among those 48 patients, 41 (85.4%) patients presented with erectile dysfunction. The preoperative International Index of Erectile Function-5 scores in patients with macroprolactinomas were significantly higher than those in patients with giant prolactinomas (17.63 ± 0.91 vs 13.28 ± 1.43; P = 0.01). Postoperatively, the incidence of erectile dysfunction was 47.9%, which was significantly lower than that preoperatively (85.4%; P = 0.01). Twenty-eight (68.3%) patients demonstrated an improvement in erectile dysfunction. Tumor size and invasiveness were significantly correlated with the improvement of erectile dysfunction. Preoperative testosterone <2.3 ng ml-1 was an independent predictor of improvement in erectile dysfunction. In conclusion, our results indicated that tumor size and invasiveness were important factors affecting the improvement of sexual dysfunction in male patients with prolactinoma. The preoperative testosterone level was an independent predictor related to the improvement of erectile dysfunction.

Transcutaneous electrical acupoint stimulation improves pregnancy outcomes of in vitro fertilization- embryo transfer : A meta-analysis of randomized controlled trials / 中华男科学杂志

Objective@#To evaluate the effect of transcutaneous electrical acupoint stimulation (TEAS) on the pregnancy outcomes of in vitro fertilization-embryo transfer (IVF-ET) based on the available clinical evidence.@*METHODS@#We searched PubMed, MEDLINE, EMBASE, Cochrane Library, CNKI, VIP, CBM and Wanfang Database up to February 2021 for published randomized controlled trials (RCT) relevant to TEAS for the improvement of the pregnancy outcomes of IVF-ET. We performed literature screening, data extraction and quality evaluation according to the inclusion and exclusion criteria, followed by a meta-analysis with the RevMan 5.3 software.@*RESULTS@#A total of 2 206 cases of IVF-ET from 9 RCTs were included, 1 018 in the TEAS group and 1 188 in the control. The clinical pregnancy rate was significantly higher in the TEAS than in the mock TEAS and non-TEAS control groups (RR = 1.85, 95% CI: 1.42－2.42, P < 0.001; RR = 1.23, 95% CI: 1.10－1.39, P = 0.0004), and so was it before and after oocyte retrieval (RR = 1.50, 95% CI: 1.03－2.17, P = 0.03; RR = 1.47, 95% CI: 1.12－1.92, P = 0.005). The TEAS group also showed dramatically improved embryo implantation rate (RR = 1.49, 95% CI: 1.24－1.79, P < 0.0001) and live birth rate (RR = 1.44, 95% CI: 1.04－1.98, P = 0.03) compared with the control.@*CONCLUSIONS@#As a safe and non-invasive treatment, TEAS can significantly improve the pregnancy outcomes of IVF-ET, with definite effectiveness. /.

Effect of saw palmetto extract on the reproductive function of male rats with chronic prostatitis / 中华男科学杂志

Objective@#To investigate the effect of saw palmetto extract (SPE) on the reproductive function of rats with chronic prostatitis (CP).@*METHODS@#Forty male SD rats were equally randomized into groups A (blank control), B (blank control + SPE, C (CP model control) and D (CP model + SPE), and the CP model was made by injection of 1% λ-carrageenan solution into the prostate. The animals in groups A and C were gavaged with normal saline while those in groups B and D with SPE at 0.10 g/kg/d, all for 30 successive days. After drug withdrawal, the rats were mated with female ones in the ratio of 1∶1) and sacrificed 7 days later, their bilateral epididymides collected for detection of sperm count and motility. The numbers of pregnancies and fetuses were recorded and compared among different groups.@*RESULTS@#Compared with the rats in group A, those in group C showed a marked decrease in epididymal sperm motility (［68.01 ± 1.80］% vs ［62.59 ± 4.82］%, P 0.05). There were no statistically significant differences in the count of epididymal sperm, rate of pregnancy and number of fetuses between group A and the other groups (P > 0.05).@*CONCLUSIONS@#SPE can improve the semen parameters of CP rats, and has no adverse effect on the rate of pregnancy and number of fetuses.

Efficacy and safety of low-intensity extracorporeal shock wave therapy in the treatment of ED: A meta-analysis of randomized controlled trials / 中华男科学杂志

Objective@#To evaluate the clinical efficacy and safety of low-intensity extracorporeal shock wave therapy (LI-ESWT) in the treatment of ED based on the available clinical evidence.@*METHODS@#We searched PubMed, MEDLINE, EMBASE, Cochrane Library, CNKI, VIP, CBM and Wanfang Database up to June 2018 for published randomized controlled trials on the treatment of ED by LI-ESWT. We performed literature screening, data extraction and quality evaluation according to inclusion and exclusion criteria, and conducted a meta-analysis of the data obtained using the RevMan 5.3 software.@*RESULTS@#A total of 595 ED cases in 8 double-blind randomized controlled trials (RCT) were included in this study, 362 in the LI-ESWT and 233 in the control group. Compared with the controls, the patients treated by LI-ESWT showed significantly improved IIEF (WMD = 1.70, 95% CI: 0.44－2.96, P = 0.008) and erection hardness score (EHS) (RR = 11.72, 95% CI: 5.13－26.80, P < 0.01). The IIEF scores of the patients were markedly increased at 4 and 24 weeks after LI-ESWT (WMD = 1.43, 95% CI: 0.10－2.75, P = 0.03; WMD = 3.09, 95% CI: 1.49－4.68, P = 0.0002), as well as after the 10th to 12th treatment (WMD = 1.81, 95% CI: 0.31－3.31, P = 0.02) though not after the 5th to 6th (WMD = 1.88, 95% CI: －2.10 to 5.86, P = 0.35). LI-ESWT also significantly increased the IIEF scores in the patients with the baseline IIEF ≥12 (WMD = 2.13, 95% CI: 0.51－3.75, P = 0.01) but not in those with the baseline IIEF ≤11 (WMD = 1.04, 95% CI: －0.96 to 3.03, P = 0.31). No significant adverse events were reported in the 8 RCTs.@*CONCLUSIONS@#As a non-invasive treatment, LI-ESWT is safe and effective and can significantly improve IIEF and EHS in ED patients.

Fosfomycin tromethamine inhibits the expressions of TNF-α, IL-8 and IL-6 in the prostate tissue of rats with chronic bacterial prostatitis / 中华男科学杂志

<p><b>Objective</b>To investigate the effects of fosfomycin tromethamine (FT) on the expressions of tumor necrosis factor-α (TNF-α), interleukin-8 (IL-8), and interleukin-6 (IL-6) in the prostate tissue of the rats with chronic bacterial prostatitis (CBP).</p><p><b>METHODS</b>We randomly divided 70 male SD rats into 7 groups of equal number: blank control, CBP model control, positive control, 14 d low-dose FT, 7 d low-dose FT, 14 d high-dose FT, and 7 d high-dose FT. The CBP model rats in the latter five groups were treated intragastrically with levofloxacin at 100 mg/kg/d for 30 days and FT at 200 mg/kg/d for 14 and 7 days and at 300 mg/kg/d for 14 and 7 days, respectively. Then we collected the prostate tissue from the animals for determination of the levels of TNF-α, IL-8 and IL-6 by ELISA.</p><p><b>RESULTS</b>Compared with the blank controls, the CBP model rats showed significantly increased levels of TNF-α (［19.83 ± 6.1］ vs ［32.93 ± 6.21］ ng/g prot, P <0.01), IL-8 (［8.26 ± 0.52］ vs ［16.2 ± 2.84］ ng/g prot, P <0.01) and IL-6 (［1.55 ± 0.11］ vs ［2.51 ± 1.06］ ng/g prot, P <0.05) in the prostate tissue. In comparison with the CBP model controls, the levels of TNF-α and IL-8 were remarkably decreased in the groups of positive control (［20.54 ± 5.78］ ng/g prot, P <0.01; ［12.43 ± 4.02］ ng/g prot, P <0.05), 14 d low-dose FT (［21.95 ± 6.48］ ng/g prot, P <0.01; ［11.11 ± 2.86］ ng/g prot, P <0.01), 7 d low-dose FT (［23.8 ± 6.93］ ng/g prot, P <0.05; ［12.43 ± 4.02］ ng/g prot, P <0.05), 14 d high-dose FT (［19.97 ± 2.58］ ng/g prot, P <0.01; ［8.83 ± 1.32］ ng/g prot, P <0.01), and 7 d high-dose FT (［21.97 ± 3.38］ ng/g prot, P <0.01; ［12.68±1.97］ ng/g prot, P <0.05). No statistically significant differences were observed between the positive control and FT groups in the contents of TNF-α, IL-8 or IL-6 (P >0.05). The expression of IL-6 was markedly reduced in the 14 d high-dose FT group as compared with the model controls (［1.76 ± 0.46］ vs ［2.51 ± 1.06］ ng/g prot, P<0.05) but exhibited no significant difference between the CBP model control and the other groups (P >0.05).</p><p><b>CONCLUSIONS</b>Fosfomycin tromethamine inhibits the expressions of TNF-α, IL-8 and IL-6 in the prostate tissue, suppresses its inflammatory reaction, promotes the repair of damaged prostatic structure, and thus contributes to the treatment of chronic bacterial prostatitis in rats.</p>

Effects of Xialiqi Capsules on the expressions of PCNA and caspase-3 in rats withbenign prostatic hyperplasia / 中华男科学杂志

Objective@#To explore the effects of Xialiqi Capsules(XLQ) on the expressions of the proliferating cell nuclear antigen (PCNA) and caspase-3 in the prostate tissue of the BPH rat model.@*METHODS@#Fifty male SD ratswereequally randomized into groups A (sham operation control), B (BPH model control), C (high-dose XLQ), D (low-dose XLQ), and E (finasteridecontrol) andthe BPH modelswere established by subcutaneous injection of testosterone propionate at 0.5 mg per kilogram of the body weight per day for 30 days after castration. After modeling, the animals in groups A and B were treated intragastricallywith normal saline, while those in C, D, and E with XLQ at 1.20 and 0.61 g per kilogram of the body weight per day or finasterideat 0.8 mg per kilogram of the body weight per day, respectively, all for 30 days. Then,the bilateral prostates were harvestedfrom the rats for calculation of the prostatic index (prostate wet weight/ body weight) and determination of the expressions of PCNA and caspase-3 in the prostate tissue by immunohistochemistry and immunofluorescence staining, respectively.@*RESULTS@#The prostate wet weight and prostate index were significantly increased in group B as compared with group A, (［1326±60］ vs［471±17］ g, P<0.01; ［2.89±0.18］ vs ［1.06±0.06］ mg/g, P<0.01), but decreased in groups C (［914±36］ g;［2.02±0.08］ mg/g), D (［1 099±46］g;［2.39±0.11］ mg/g), and E (［817±53］ g;［1.83±0.10］ mg/g)in comparison with B (P<0.01), with statistically significant differences among groups C, D, and E(P<0.01) and most significantly in E.The PCNA level in the prostate tissue wasremarkably higher in group B than in A, but lower in groups C, D and E than in B. The expression of caspase-3 was down-regulatedin group B as compared with A, but up-regulated in groups C, D and E in comparison with B, most significantly in E.@*CONCLUSIONS@#Xialiqi Capsules can effectively reduce the prostate wet weight and prostatic index of in rats with BPH by inhibiting the level of PCNA and promoting the expression of caspase-3.

Ningmitai Capsule for the treatment of andrological diseases: Advances in studies / 中华男科学杂志

Ningmitai Capsule is a classical patent medicine prepared from multiple effective ingredients of Chinese herbal medicine, with a wide range of biological activities and a significant efficacy in the treatment of urogenital diseases. Ningmitai Capsule has been widely applied in the management of urological and andrological diseases, with a particularly ideal effect on chronic prostatitis, since its first introduction nearly 20 years ago. With no obvious adverse effect on the male reproductive system, it has also been gaining a gradual application in the treatment of such diseases as urinary tract infections, diabetes, non-gonococcal urethritis, seminal vesiculitis, acute epididymitis, overactive bladder, hematuria, and semen non-liquefaction. However, the definite efficacy of Ningmitai Capsule needs to be further verified with more large-scale multi-centered randomized controlled trials, and its pharmacological mechanism remains to be further explored via more biomolecular experiments. The present article focuses on the recent advances in the application and studies of Ningmitai Capsule in the treatment of urological and andrological diseases.

Protective effect of astaxanthin against epididymal oxidative damagein rats with ornidazole-induced oligoasthenozoospermia / 中华男科学杂志

Objective@#To investigate the improving effect of astaxanthin (AST) on the sperm quality of rats with ornidazole (ORN)-induced oligoasthenozoospermiaand its action mechanism.@*METHODS@#Forty adult male SD rats were equally randomized into groups A (solvent control), B (low-dose ORN ［400 mg/（kg·d）］), C (high-dose ORN ［800 mg/（kg·d）］), D (low-dose ORN ［400 mg/（kg·d）］ + AST ［20 mg/（kg·d）］), and E (high-dose ORN ［800 mg/（kg·d）］ + AST ［20 mg/（kg·d）］), all treated intragastrically for3 weeks.After treatment, the epididymal tails ononeside was taken for determination of sperm concentration and activity, and the epididymideson the other side harvested for measurement of the activities of GSH-Px, GR, CAT and SOD and the MDA contentin the homogenate.@*RESULTS@#Compared with group A, sperm motilityin the epididymal tail andGSH-Px and SOD activities in theepididymiswere markedly decreased while the MDAcontent significantlyincreased in group B (P<0.05), spermmotility and concentrationin the epididymal tail, testisindex, and the activities of GSH-Px, GR, CAT and SOD in the epididymis were remarkably reduced while theMDA contentsignificantly increased in group C(P<0.05). In comparison with group B, group D showed markedly increased sperm motility (［45.3±8.7］% vs ［66.3±8.9］%, P<0.05) in the epididymal tail and SOD activity in the epididymis (［116.7±25.3］ U/mg prot vs ［146.1±23.8］ U/mg prot, P<0.05), decreased MDA content(［1.68±0.45］ nmol/mg prot vs ［1.19±0.42］ nmol/mg prot, P<0.05).Compared with group C, group Eexhibited significant increases in the weight gained (［89.0±9.5］ vs ［99.9±4.1］ %, P<0.05) and sperm motility (［17.9±3.5］% vs ［27.3±5.3］ %, P<0.05) but a decrease in the content of MDA (［2.03±0.30］ nmol/mg prot vs ［1.52±0.41］ nmol/mg prot, P<0.05).@*CONCLUSIONS@#AST can improve spermquality in rats with ORN-inducedoligoasthenozoospermia, which may be associated with its enhancing effect on the antioxidant capacity of the epididymis.

Ubiquitin-proteasome system and sperm DNA repair: An update / 中华男科学杂志

The ubiquitin-proteasome system (UPS) is a proteasome system widely present in the human body, which is composed of ubiquitin (Ub), ubiquitin activating enzymes (E1), ubiquitin conjugating enzymes (E2), ubiquitin protein ligases (E3), 26S proteasome, and deubiquitinating enzymes (DUBs) and involved in cell cycle regulation, immune response, signal transduction, DNA repair as well as protein degradation. Sperm DNA is vulnerable to interference or damage in the progression of chromosome association and homologous recombination. Recent studies show that UPS participates in DNA repair in spermatogenesis by modulating DNA repair enzymes via ubiquitination, assisting in the identification of DNA damage sites, raising damage repair-related proteins, initiating the DNA repair pathway, maintaining chromosome stability, and ensuring the normal process of spermatogenesis.

ICSI with testicular or epididymal sperm for patients with obstructive azoospermia: A systematic review / 中华男科学杂志

<p><b>Objective</b>To assess the effects of testicular sperm and epididymal sperm on the outcomes of ICSI for patients with obstructive azoospermia.</p><p><b>METHODS</b>We searched PubMed, MEDLINE, EMBASE, Cochrane, CNKI, VIP, CBM, and Wanfang Database up to December 2015 for published literature relevant to ICSI with testicular or epididymal sperm for obstructive azoospermia patients. According to the inclusion and exclusion criteria, two reviewers independently conducted literature screening, data extraction and quality assessment of the included trials, followed by meta-analysis with the RevMan 5.3 software.</p><p><b>RESULTS</b>A total of 14 studies were identified, involving 1 278 patients and 1 553 ICSI cycles. ICSI with epididymal sperm exhibited a significantly higher fertilization rate than that with testicular sperm (RR = 1.08, 95% CI 1.05－1.11, P<0.01). No statistically significant differences were observed between the epididymal and testicular sperm groups in the rates of cleavage (RR = 1.04, 95% CI 0.99－1.10, P = 0.13), good-quality embryo (RR = 1.01, 95% CI 0.93－1.09,P = 0.85), implantation (RR = 1.14, 95% CI 0.75－1.73, P = 0.55), clinical pregnancy (RR = 1.14, 95% CI 0.98－1.31, P = 0.08), and miscarriage (RR = 0.86, 95% CI 0.53－1.39,P = 0.54).</p><p><b>CONCLUSIONS</b>ICSI with epididymal sperm yields a markedly higher fertilization rate than that with testicular sperm, but has no statistically significant differences from the latter in the rates of cleavage, good-quality embryo, implantation, clinical pregnancy, and miscarriage in the treatment of obstructive azoospermia.</p>

Longjintonglin Capsules for type IIIA prostatitis accompanied by abnormal semen liquefaction: A clinical observation / 中华男科学杂志

<p><b>OBJECTIVE</b>To evaluate the therapeutic effect of Longjintonglin Capsules on type IIIA prostatitis accompanied by abnormal semen liquefaction.</p><p><b>METHODS</b>We selected 140 patients with type IIIA prostatitis accompanied by abnormal semen liquefaction according to the diagnostic standards of the American Institutes of Health (NIH) and treated them with Longjintonglin Capsules orally 3 capsules once tid for 12 weeks. We obtained the NIH Chronic Prostatitis Symptom Indexes (NIH-CPSI), traditional Chinese medicine (TCM) syndrome scores, leukocyte count in the expressed prostatic secretion (EPS), semen liquefaction time, and the results of semen analysis and compared these indicators before and after the treatment.</p><p><b>RESULTS</b>Of the 140 cases, 132 were included in this study, excluding 8 due to their incomplete case histories. Before and after 4, 8 and 12 weeks of medication, the total NIH-CPSI scores were 24.52 ± 5.43, 21.28 ± 4.85, 18.01 ± 4.28, and 14.49 ± 3.65 (P < 0.01), the TCM syndrome scores were 35.63 ± 6.07, 26.66 ± 5.03, 17.37 ± 4.18, and 11.11 ± 3.96 (P < 0.01), and the leukocyte counts (/HP) were 27.50 ± 7.01, 22.38 ± 5.22, 16:76 ± 4.10, and 11.40 ± 4.74 (P < 0.01), respectively. After 12 weeks of treatment, 31 of the patients with type IIIA prostatitis were cured and another 72 well responded, with an overall response rate of 78.0%. Of those with abnormal semen liquefaction, 61 were cured, 39 well responded, and 32 failed to respond, with an overall effectiveness rate of 75.8%. Semen analysis showed significantly increased percentage of progressively motile sperm after 4, 8 and 12 weeks of medication as compared with the baseline (P < 0.01). No abnormal liver or renal function or other adverse reactions were observed during the treatment.</p><p><b>CONCLUSION</b>Longjintonglin Capsules, with its advantages of safety, effectiveness and no obvious adverse effects, deserve to be recommended for the treatment of type IIIA prostatitis accompanied by abnormal semen liquefaction.</p>

Related reproductive issues on male autosomal dominant polycystic kidney disease / 中华男科学杂志

Autosomal dominant polycystic kidney disease (ADPKD) is a most common inherited renal disease, about 50% with a family history, although the exact etiology not yet clear. To date, ADPKD, a multisystem disorder without effective preventive and therapeutic means, has been shown to be detrimental to human health. Recent studies show that severe oligoasthenozoospermia, necrospermia, immotile sperm, azoospermia, epididymal cyst, seminal vesicle cyst, and ejaculatory duct cyst found in male ADPKD patients may lead to male infertility, though the specific mechanisms remain unknown. Structural anomaly of spermatozoa, defect of polycystin, mutation of PKD genes, and micro-deletion of the AZF gene could be the reasons for the higher incidence of abnormal semen quality in male ADPKD patients. Assisted reproductive techniques can increase the chances of pregnancy, whereas the health of the offspring should be taken into consideration. This article presents an overview of reproductive issues concerning infertile male ADPKD patients from the perspective of the morbidity, pathophysiological mechanism, diagnosis, and management of the disease.

Effect and safety of L-carnitine in the treatment of idiopathic oligoasthenozoospermia: a systemic review / 中华男科学杂志

<p><b>OBJECTIVE</b>To evaluate the effect and safety of L-carnitine in the treatment of idiopathic oligoasthenozoospermia based on current clinical evidence.</p><p><b>METHODS</b>We searched the Cochrane Library, PubMed, MEDLINE, EMBASE, CNKI, VIP, CBM and Wanfang Database from the establishment to April 2014 for the published literature on the treatment of idiopathic oligoasthenozoospermia with L-carnitine. We conducted literature screening, data extraction, and assessment of the methodological quality of the included trials according to the inclusion and exclusion criteria, followed by statistical analysis with the RevMan 5. 2 software.</p><p><b>RESULTS</b>Seven randomized controlled trials involving 751 patients with idiopathic oligoasthenozoospermia met the inclusion criteria, and 678 of them were included in the meta-analysis. L-carnitine treatment achieved a significantly increased rate of spontaneous pregnancy as compared with the control group (RR = 3.2, 95% CI 1.74 to 5.87, P = 0.0002). After 12-16 and 24-26 weeks of medication, total sperm motility (WMD = 5.21, 95% CI 2.78 to 7.64, P < 0.0001 and WMD = 9.29, 95% CI 1.28 to 17.29, P = 0.02) and the percentage of progressively motile sperm (WMD = 12.44, 95% CI 4.58 to 20.31, P = 0.002 and WMD = 9.76, 95% CI 3.56 to 15.97, P = 0.002) were remarkably higher than those in the control group, but no statistically significant differences were observed in sperm concentration between the two groups (WMD = 4.91, 95% CI -2.63 to 12.45, P = 0.2 and WMD = 0.93, 95% CI -3.48 to 5.34, P = 0.68). After 12-16 weeks of treatment, the percentage of morphologically abnormal sperm was markedly decreased in the L-carnitine group as compared with the control (WMD = -2.48, 95% CI -4.35 to -0.61, P = 0.009), but showed no significant difference from the latter group after 24-26 weeks (WMD = -4.38, 95% CI -9.66 to 0.89, P = 0.1). No statistically significant difference was found in the semen volume between the two groups after 12-16 or 24-26 weeks of medication (WMD = -0.13, 95% CI -0.43 to 0.18, P = 0.42 and WMD = 0.28, 95% CI -0.02 to 0.58, P = 0.07). No serious L-carnitine-related adverse events were reported in 4 of the randomniized controlled trials.</p><p><b>CONCLUSION</b>The current evidence indicates that L-carnitine can improve spontaneous pregnancy and semen parameters in the treatment of idiopathic oligoasthenozoospermia, with no serious adverse reactions.</p>

Lipopolysaccharide affects testicular histology and reproductive endocrine function in male rats / 中华男科学杂志

<p><b>OBJECTIVE</b>To study the influence of lipopolysaccharide (LPS)-induced inflammation on the testicular histology and reproductive endocrine function in male rats and investigate the possible mechanism of inflammation affecting male fertility.</p><p><b>METHODS</b>Thirty-six male SD rats were randomly divided into a control group (A) and three LPS intervention groups (B, C, and D) to receive saline and LPS (5 mg/kg i. p, once), respectively. The animals in groups B, C, and D were killed by anesthesia at 12, 24, and 72 hours after treatment. Histopathological changes in the left testis of the rats were observed by HE staining and the levels of the reproductive hormones T, FSH, and LH in the serum were determined by ELISA.</p><p><b>RESULTS</b>Compared with group B, group A showed clear structure of seminiferous tubules, orderly arrangement of spermatogenic cells, a slightly decreased number of sperm in some seminiferous tubular lumens, and shed spermatogenic cells in the rat testis tissue; group C exhibited thinner seminiferous epithelia, disordered structure of seminiferous tubules, irregular arrangement of spermatogenic cells, decreased number of mature sperm and obvious shedding of spermatogenic cells in seminiferous tubular lumens; group D manifested similar findings to those of group C, with even more shed spermatogenic cells that blocked the tubular lumens. The levels of serum T, LH, and FSH were (0.490 +/- 0.028) ng/ml, (6.290 +/- 0.515) ng/L, and (1.837 +/- 0.127) IU/L in group A, (0.460 +/- 0.024) ng/ml, (5.881 +/- 0.124) ng/L, and (1.707 +/- 0.098) IU/L in group B, (0.417 +/- 0.021) ng/ml, (5.123 +/- 0.271) ng/L, and (1.620 +/- 0.115) IU/L in group C, and (0.378 +/- 0.021) ng/ml, (4.504 +/- 0.279) ng/L and (1.562 +/- 0.216) IU/L in group D, all decreased in group B as compared with A (P > 0.05). The decreases of T and LH were extremely significant (P < 0.01) and that of FSH was significant in groups C and D (P < 0.05) in comparison with A.</p><p><b>CONCLUSION</b>LPS-induced inflammation affects the testicular tissue and reproductive endocrine function of male rats, resulting in decreased levels of serum T, LH, and FSH.</p>

Reproductive hormone levels and relevant parameters in middle-aged and older men in the urban area of Nanjing / 中华男科学杂志

<p><b>OBJECTIVE</b>To investigate the status of male reproductive health among middle-aged and older men in the urban area of Nanjing.</p><p><b>METHODS</b>We collected the laboratory results of 884 middle-aged and older men aged 55 - 89 years from the Xuanwu District of Nanjing present for routine physical examinations, including those of blood routine tests, liver and kidney function, blood glucose, blood lipid, and total prostate specific antigen (TPSA), as well as such reproductive hormone indexes as total serum testosterone (TT), free serum testosterone (fT), and sex hormone binding globulin (SHBG). We also obtained the above reproductive hormone indexes from 119 young and middle-aged men aged 20 - 39 years as controls.</p><p><b>RESULTS</b>Aging-related changes were found in the 50 percentiles of all the reproductive hormones and relevant parameters but those of TT and E2, with gradual increases in LH, FSH and SHBG and decreases in fT, TSI and fTI. Comparison of reproductive hormones and relevant parameters by Mann-Whitney U test did not show any statistically significant differences in the TT level between any two of the five age groups (20 - 39, 55 - 59, 60 - 69, 70 - 79, and > or = 80 yr) (P > 0.05) except between the control and > or = 80 yr groups and the 60 - 69 and > or = 80 yr groups (P < 0.05), nor in the E2 level between any two groups, nor in the levels of LH and FSH except between the 55 - 59 and 60 - 69 yr groups and the 70 - 79 and > or = 80 yr groups, and nor in the levels of fT and TSI except between the 55 - 59 and 60 - 69 yr groups. However, there were significant differences in the levels of SHBG and fTI between any two age groups. Spearman correlation analysis revealed that fT, TSI, and fTI were correlated negatively with aging and LH (P < 0.05, I r I > 0.5) but weakly positively with cholesterol, blood glucose and hemoglobin (P < 0.05, /r/ < 0.5), SHBG and LH positively with aging, SHBG weakly negatively with blood glucose and hemoglobin, LH weakly negatively with hemoglobin, and TT weakly negatively with aging but positively with hemoglobin.</p><p><b>CONCLUSION</b>The levels of serum testosterone, particularly that of fT, declined with aging in middle-aged and older men in the urban area of Nanjing, which may contribute to abnormal lipid metabolism, low hemoglobin and high blood glucose.</p>