1.Risks and benefits: new concepts of treatment of late-onset hypogonadism.
National Journal of Andrology 2014;20(6):483-489
Late-onset hypogonadism (LOH) is a clinical and bio-chemical syndrome associated with advancing age in males and seriously affects the quality of life of some of the patients. A classical therapeutic option for LOH is testosterone supplementary treatment (TST). Its effectiveness has been verified, whereas its long-term safety remains to be further evaluated. With deeper insights into LOH, many new therapeutic strategies have been proposed, which include the treatments with gonadotropins, testosterone precursors (such as dehydroepiandrosterone [DHEA]), non-aromatizable androgens (such as dihydrotestosterone [DHT]), antiestrogens (such as aromatase inhibitors and estrogen receptor antagonists), and Chinese medicine. Meanwhile, studies on the transplantation of Leydig stem cells, selective androgen receptor modulators (SARMs), and selective estrogen receptor beta (ERbeta) agonists have shed new light on the treatment of LOH.
Humans
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Hypogonadism
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drug therapy
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surgery
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therapy
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Male
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Testosterone
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therapeutic use
2.Comparison of Feeding Tolerance in Very Low Birth Weight Infants with Transpyloric Feeding and Intragastric Feeding
yun, FENG ; jun, CHEN ; xiao-yu, ZHOU
Journal of Applied Clinical Pediatrics 2006;0(19):-
0.05).Duodenal perforation did not occur in 2 groups.Conclusions TP may significantly reduce the frequency of apnoea and vomiting and improve feeding tolerance in VLBWI,it can be used in VLBWI with suspected gastroesophageal reflux.
3.Clinical efficacy of intermittent androgen suppression treatment of advanced prostate cancer in elderly patients
Chun YANG ; Jun FENG ; Jian DONG ; Deshui YU ; Jun CONG
Chinese Journal of Geriatrics 2014;33(9):980-982
Objective To explore clinical effect and safety of intermittent androgen suppression treatment of advanced prostate cancer in elderly patients.Methods 78 patients with advanced prostate cancer were enrolled,and randomly divided into the observation group and the control group (n=39 each).Patients in observation group were treated with intermittent androgen suppression treatment.Patients in control group were treated with persistent androgen suppression treatment.Results The time of therapy was much longer in observation group than in control group (P< 0.001).Quality of life was better in observation group than in control group (P<0.05).The incidences of adverse reactions including anemia,fever and abnormal liver function were lower in observation group than in control group (all P<0.05).Conclusions Intermittent androgen suppression treatment prolongs time to androgen-independent progression,improve the quality of life,reduce drug dosage and the incidence of adverse reactions in the treatment of advanced prostate cancer in the elderly.
4.Diagnostic value of urine-based PCA3 score in prostate cancer patients undergoing initial prostatic biopsy
Zehui YU ; Jun FENG ; Deshui YU ; Chun YANG
Military Medical Sciences 2017;41(1):65-68
Objective To evaluate the diagnostic value of urine-based prostate cancer antigen 3 ( PCA3 ) score in detecting prostate cancer during initial prostatic biopsy .Methods Urine was collected after digital rectal examination ( DRE) ( three strokes per lobe ) from 248 men before prostate biopsy .The specimens were collected between January 2010 and December 2012.The expression of PCA3 mRNA and prostate specifc antigen (PSA) mRNA was determined by quanti-tative real time polymerase chain reaction ( qRT-PCR ) .PCA3 scores were calculated by PCA 3 mRNA/PSA mRNA × 1000 .The ability of the PCA3 score to predict the biopsy outcome was assessed with AUC-ROC analysis and compared with the serum PSA levels.Results The rate of positive prostate biopsy was 32.3%(80 patients with positive prostatic biopsy versus 168 patients with negative prostate biopsy ) .PCA3 scores were significantly higher in patients with positive biopsy than in those with negative biopsy results (P<0.001).The ROC curve analysis demonstrated that the area under the ROC curve (AUC) of serum total PSA (tPSA), PCA3 score and the duplex model combining tPSA and PCA 3 score was 0.620, 0.693 and 0.724, respectively.Further analysis of the diagnostic performance of PCA3 score revealed that at a cut-off of 90.2456, the sensitivity was 67.5%and the specificity was 61.9%for discriminating positive biopsy from negative biopsy. The duplex model combining tPSA and PCA 3 score represented a better approach than tPSA alone in PCa diagnosis by pros-tatic biopsy (P=0.011), but there was no statistically significant difference between tPSA and PCA 3 score (P=0.160). In addition , a comprehensive diagnostic model based on multiple risk factors of prostate cancer combined with PCA 3 score could further improve the predictive accuracy of prostate cancer .Conclusion PCA3 could be a good predictor of prostate cancer in initial prostate biopsy in Chinese population .The comprehensive diagnostic model can improve the diagnostic potency .Further large-scale multicenter studies in China are needed to confirm our findings .
5.Analysis of correlation between dry eye and diabetic retinopathy in type 2 diabetic patients
Jian-Feng, YU ; Yu, SONG ; Yan, ZHU ; Jun-Jie, LI
International Eye Science 2016;16(6):1187-1189
?AIM:To investigate the correlation between dry eye and different degrees of diabetic retinopathy ( DR ) in type 2 diabetic patients.?METHODS: In the cross-sectional study, 340 patients (340 eyes) with type 2 diabetes were enrolled. Tear film function tests including tear meniscus height, tear film breakup time ( BUT ) , fluorescein staining, Schirmer Ⅰtest were performed followed by surveying questionnaires about dry eye. Retinal status was evaluated by retinal color photography and indirect ophthalmoscopy exam with dilated pupils to evaluate DR and whether companied by macular edema.?RESULTS:The prevalence of dry eye was 49. 41%. The mean duration of diabetes in patients with dry eye was 11.15±7.07a, while 6.92±5.45a without dry eye(P<0.01). Dry eye had the positive correlation to the development of DR. The incidence of dry eye in people with mild nonproliferative diabetic retinopathy ( NPDR ) , moderate NPDR, severe NPDR and proliferative diabetic retinopathy (PDR) was 1. 097 times, 1. 724 times, 2. 86 times and 5. 43 times respectively, compared with people without DR. The occurrence of dry eye in people with macular edema increased by 3. 697 times compared with people without macular edema.?CONCLUSION: Dry eye was more prevalent in people with type 2 diabetes. The incidence of dry eye increased gradually with the occurrence and development of diabetic retinopathy.
6.Application of saw palmetto fruit extract in the treatment of prostate diseases.
Xu-xin ZHAN ; Xue-jun SHANG ; Yu-feng HUANG
National Journal of Andrology 2015;21(9):841-846
Saw palmetto fruit extract (SPE), as a herbal product, is widely used for the treatment of benign prostatic hyperplasia (BPH) and lower urinary tract symptoms (LUTS). Recent studies show that SPE also has some therapeutic effects on chronic prostatitis, prostate cancer, sexual dysfunction, and so on. This article presents an overview on the application of SPE in the treatment of BPH, prostate cancer, and chronic prostatitis/chronic pelvic pain syndrome, with a discussion on its action mechanisms.
Chronic Disease
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Fruit
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chemistry
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Humans
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Lower Urinary Tract Symptoms
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drug therapy
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Male
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Pelvic Pain
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drug therapy
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Plant Extracts
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therapeutic use
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Prostatic Diseases
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drug therapy
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Prostatic Hyperplasia
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drug therapy
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Prostatic Neoplasms
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drug therapy
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Prostatitis
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drug therapy
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Syndrome
7.Phosphodiesterase type 5 inhibitors for premature ejaculation: advances in studies.
Dun-sheng MO ; Xue-jun SHANG ; Yu-feng HUANG
National Journal of Andrology 2015;21(6):561-565
Premature ejaculation (PE) is a common male sexual disorder with an incidence rate of 20-30%. Recent clinical trials have demonstrated that phosphodiesterase type 5 inhibitors (PDE5i), as the first-line drug for erectile dysfunction (ED), can improve ejaculatory function probably by acting on the peripheral and central adrenergic nerves. The possible action mechanisms of PDE5i may involve lessening of the central sympathetic output, modulation of the contractile responses from the vas deferens, seminal vesicles, prostate and urethra, induction of peripheral analgesia, and prolonging of the total erectile duration, increasing the confidence of ejaculation control, and reducing the post-ejaculation refractory time. This review discusses the possible mechanisms and clinical application of PDE5i in the treatment of PE.
Ejaculation
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drug effects
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Erectile Dysfunction
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drug therapy
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Humans
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Male
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Muscle Contraction
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Phosphodiesterase 5 Inhibitors
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therapeutic use
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Premature Ejaculation
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drug therapy
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Seminal Vesicles
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physiology
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Vas Deferens
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physiology
8.Repair of soft-tissue defects of feet and ankles by using an expanded reverse island flap with a saphenous neuro-vascular pedicle.
He-jun YU ; Jian-feng ZHANG ; Qi MA
Chinese Journal of Plastic Surgery 2005;21(1):13-14
OBJECTIVETo evaluate a expanded reverse island flap with a saphenous neuro-vascular pedicle for repairing the defects of the feet and ankles.
METHODSAn expanded reverse island skin flap, with the Six saphenous neuro-vascular pedicle, was designed to repair the skin defects on the feet and ankles.
RESULTSpatients with the defects of the feet and ankles were treated with the expanded saphenous island flap and all of the The expanded reversed island skin flaps were survived. The largest flap size was 12 cm x 10 cm.
CONCLUSIONSflap could be a good option for repairing the defects of the feet and ankles.
Adolescent ; Adult ; Ankle Injuries ; surgery ; Child ; Female ; Femoral Nerve ; surgery ; Graft Survival ; Humans ; Male ; Middle Aged ; Skin Transplantation ; Soft Tissue Injuries ; surgery ; Surgical Flaps ; blood supply ; innervation ; Young Adult
9.Clinical analysis on reoperation on differentiated thyroid cancer.
Zhen-yu WANG ; Feng LI ; Wei-jun ZHANG
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2010;45(11):951-953
Adult
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Aged
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Carcinoma, Papillary
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pathology
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surgery
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Female
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Humans
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Male
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Middle Aged
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Reoperation
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Retrospective Studies
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Thyroid Neoplasms
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pathology
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surgery
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Treatment Outcome
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Young Adult
10.Purification of coxsackievirus A16 viral particles and preparation and identification of neutralizing monoclonal antibody against coxsackievirus A16
Xin WANG ; Qing FENG ; Jingjing WEI ; Jun HU ; Pengbo YU
International Journal of Laboratory Medicine 2015;(14):1990-1991
Objective To establish the rapid purification of Coxsackievirus A16 using ultracentrifugation .And To prepare and i‐dentify the neutralizing monoclonal antibody against CA16 .Methods The CA16 culture supernatant was harvested and then con‐centrated by 100K capsule .The concentration of CA16 was purified by cesium chloride ultracentrifugation .Purification of CA16 were identified by transmission electron microscopy .BALB/c mice were immunized with inactivated CA16 .Spleen cells were harves‐ted and fused with SP2/0 myeloma cells ,hybridoma cell strain secreting mAb against CA16 were objected to screening .Character‐ization of the prepared mAb were analyzed by ELISA and microneutralization assay .Results The purified CA16 method of cesium chloride gradient ultracentrifugation was established ,TEM analysis was showed that CA16 particles have icosahedral structure ,the diameters of the viral particles were approximately 20-30 nm .Two hybridoma cell strains secreting mAb against CA16 were ob‐tained ,the subtypes of two mAbs were IgG2a ,the binding titers of Anti/CA16/5 and Anti/CA16/10 were 103 and 104 respectively . Neutralizing titer of the two mAbs were 1∶256 and 1∶1 024 respectively .Conclusion Establishment method of cesium chloride gradient ultracentrifugation was performed to purify CA16 ,the two mAbs with neutralizing ability to against CA16 may become ap‐plication of treatment and vaccine .