Polyphenylene Sulfide Ultrafine Viscous Fibrous Membrane Modified by ZIF-8 for Highly Effective Oil/Water Separation under High Salt or Alkaline Conditions.

The oil/water separation in harsh environments has always been a challenging topic all over the world. In this study, the ZIF-8/PPS fiber membranes were fabricated via the combination of hot pressing and in situ growth. The distribution of ZIF-8 in the membranes was adjusted by changing the ZIF-8 in situ growth time, which could control the oil/water separation effect.

Phthalate exposure and semen quality in infertile male population from Tianjin, China: Associations and potential mediation by reproductive hormones.

Global decline in male fertility and their associations with ubiquitous exposure of phthalates (PAEs) have raised public concerns. However, the current epidemiological data are limited and controversial. Hence, we investigated possible associations between PAE exposure and male infertility.

Endometrial thickness and IVF cycle outcomes: a meta-analysis.

Research Question: In this meta-analysis, the association between endometrial thickness (EMT) and cycle outcomes after IVF is explored. Associations between EMT and cycle outcomes according to study and individual characteristics were also assessed.

Design: Studies evaluating associations between EMT and pregnancy, implantation, miscarriage, live birth or ongoing pregnancy and ectopic pregnancy rates in individuals after IVF were identified on PubMed, Embase and the Cochrane Library (from their inception up to December 2018).

Comparison of the Clinical Outcomes of Intracytoplasmic Sperm Injection Between Spermatozoa Retrieved From Testicular Biopsy and From Ejaculate in Cryptozoospermia Patients.

Objective: To compare the clinical outcomes of intracytoplasmic sperm injection (ICSI) between spermatozoa retrieved from testicular biopsy and from ejaculate in cryptozoospermia patients.

Materials And Methods: The clinical data of 285 cryptozoospermia patients who underwent ICSI treatment in our center during the period from March 2009 to November 2013 were retrospectively analyzed. Within them, ejaculated sperms were used in 214 cases (group 1), and testicular sperms extracted by testicular sperm aspiration or conventional testis dissection sperm extraction were used in 71 cases (group 2).

[Analysis of malaria endemic situation in Shanxian County from 2002 to 2011].

Objective: To analyze the endemic situation of malaria in Shanxian County, Shandong Province, China in the last 10 years, so as to understand the epidemiological characteristics of the disease and provide the evidence for the establishment of control strategy to eliminate malaria.

Methods: The data related to the endemic situation of malaria in Shanxian County from 2002 to 2011 were collected and analyzed.

Results: From 2002 to 2011, 125 cases of malaria were reported, and the annual incidences were in the range of 0.

[Clinical application of posterior dynamic stabilization device].

Objective: To review the current development of the dynamic stabilization devices and their biomechanics as well as clinical application.

Methods: The related biomedical research papers at home and abroad were consulted and analyzed.

Results: There were obvious advances in the theoretic foundation and the clinical application in treatment of the degenerative lumbar disorders with the dynamic stabilization devices, especially with the non-fusion dynamic stabilization devices.

Polymorphism analysis of Y-chromosomal haplotypes in the Chinese Han population living in the Shaanxi province of China.

Chinese Han population living in the Shaanxi Province of China.

[Expression and effect of hCGRP recombinant adeno-associated virus in primary cultured corporal cavernosum smooth muscle cells of the rat in vitro].

Objective: To observe the expression and effect of human calcitonin gene-related peptide (hCGRP) gene mediated by recombinant adeno-associated virus (rAAV) in primary cultured corporal cavernosum smooth muscle cells of the rat and explore the possibility of using CGRP gene for gene therapy in erectile dysfunction.

Methods: The primary cultured corporal cavernosum smooth muscle cells of the rat were randomly divided into 4 groups and infected with recombinant virus VssHGCMV-hCGRP, VssHGCMV, VssC-MV-GFP and the untreated, respectively. CGRP-like immunoreactivity was measured by protein dot blot assay in the 24 h-culture medium, and intracellular cAMP and cGMP levels in the cultured cells were also determined using radioimmunoassay to ascertain bioactivity of transduced CGRP.

[Intracavernous pressure responses induced by electrical stimulation of penile dorsal nerves and intracavernosal drug injection in rats].

Objective: To evaluate the application of intracavernous pressure (ICP) monitoring in the electrophysiologic and pharmacologic induction of penile erection.

Methods: The penile dorsal nerves (DN) of 8 anesthetized adult male rats were isolated and the corpora cavernosa exposed. A heparinized 25-gauge angiocath (intravenous catheter) was inserted into the right corpus cavernosum to monitor the ICP and a 30-gauge needle was inserted into the left corpus cavernosum for intracavernosal drug administration.

[Analysis of Yq microdeletions in idiopathic infertile males with azoospermia and oligospermia in Shaanxi Province].

Objective: To evaluate the frequency of microdeletions in the long arm of Y chromosome of idiopathic infertile males with azoospermia and oligospermia in Shaanxi province in China and to investigate the relevance of sperm count to Y microdeletion frequencies.

Methods: According to the sequence of sequence-tagged sits (STS) AZFa, AZFb, AZFc and SRY, 4 of the azoospermic factor regions on Y chromosome long-term supplied by GenBank, 5 sets of primers were synthesized. The Y microdeletions in AZF regions were screened by polymerase chain reaction (PCR) in 64 idiopathic cases of azoospermia and oligospermia and 20 men of known fertility.

[Role of ionic channels in the regulation of cavernous smooth muscle tone].

The regulation of vascular and trabecular smooth muscle relaxation or contraction in the penis, that is, the physiology of corporal smooth muscle tone, determines penile erection or flaccidity. There is considerable evidence that the potassium channel and calcium channel, like many other vascular tissues, are the major modulators of smooth muscle tone in the corpora. Moreover, data on cultured corporal smooth muscle cells and isolated corporal tissue strips have demonstrated that the neurotransmitters participating in erection modulate corporal smooth muscle tone largely through their effects on ionic channels and transmembrane ionic flux.

[Advances in the study of signal transduction in cavernous smooth muscle].

The signal transduction pathways within corporal smooth muscle cells are the intracellular molecular mechanisms of corporal smooth muscle tone regulation. Various neurotransmitters activate the membrane receptor proteins or intracellular enzyme pathways and result in the production of extracellular chemical signals. Second messenger molecules and ions transmit and amplify the signals, and subsequently induce the relaxation of smooth muscle cells and penile erection.