禁欲间隔对夫精人工授精妊娠率的影响

目的：探讨禁欲间隔时间对夫精人工授精（ IUI）妊娠率的影响。方法回顾分析我院治疗的不孕不育患者临床资料,共549个IUI治疗周期,按禁欲时间1～7 d分为7组,检测记录每个周期精液参数,并比较分析妊娠率。结果精子浓度呈上升趋势,精子体积呈上升趋势,前向运动精子百分比呈下降趋势,前向运动精子总数呈上升趋势,差异有统计学意义（ P＜0．05）;排除女方疾病后,370个IUI周期妊娠共计51例,妊娠率为13．78％,禁欲1 d组妊娠率明显高于其他组。结论不育患者可打破禁欲2     

短肽型肠内营养指导在胎儿生长受限孕妇中的应用效果

目的 探究短肽型肠内营养指导应用于胎儿生长受限孕妇中的效果。方法 选取2017年9月至2019年5月如皋市人民医院收治的胎儿生长受限孕妇的116例,采用随机数字表法分为对照组和观察组,各58例。对照组给予常规营养指导,观察组给予短肽型肠内营养指导。对比干预1周后两组孕妇宫高、腹围与体质量情况,胎儿双顶径、头尾、腹围、股骨长、体质量及孕妇护理满意度。结果 干预前,两组孕妇宫高、腹围与体质量差异无统计学意义（P>0.05）;干预后,观察组宫高、腹围与体质量的差值均高于对照组,差异有统计学意义（P<0.05）;干预前,两组胎儿双顶径、头尾、腹围、股骨长及体质量差异无统计学意义（P>0.05）。干预后,观察组胎儿双顶径、头尾、腹围、股骨长及体质量的差值均高于对照组（P<0.05）。观察组干预1周后孕妇满意度高于对照组,差异有统计学意义（P<0.05）。结论 短肽型肠内营养指导应用于胎儿生长受限孕妇中,可提高孕妇宫高与腹围、胎儿双顶径与头尾,并提高孕妇护理满意度,值得推广。     

Heart rate variability analysis indicates preictal parasympathetic overdrive preceding seizure‐induced cardiac dysrhythmias leading to sudden unexpected death in a patient with epilepsy

Evidence for seizure‐induced cardiac dysrhythmia leading to sudden unexpected death in epilepsy (SUDEP) has been elusive. We present a patient with focal cortical dysplasia who has had epilepsy for 19 years and was undergoing presurgical evaluation. The patient did not have any cardiologic antecedents. During long‐term video–electroencephalography (EEG) monitoring, following a cluster of secondarily generalized tonic–clonic seizures (GTCS), the patient had prolonged postictal generalized EEG suppression, asystole, followed by arrhythmia, and the patient died despite cardiopulmonary resuscitation. Analysis of heart rate variability showed a marked increase in the parasympathetic activity during the period preceding the fatal seizures, compared with values measured 1 day and 7 months before, and also higher than the preictal values in a group of 10 patients with GTCS without SUDEP. The duration of the QTc interval was short (335–358 msec). This unfortunate case documented during video‐EEG monitoring indicates that autonomic imbalance and seizure‐induced cardiac dysrhythmias contribute to the pathomechanisms leading to SUDEP in patients at risk (short QT interval). A PowerPoint slide summarizing this article is available for download in the Supporting Information section here .     

D6S1043、D12S391基因座与主动攻击行为的关联研究

目的 探讨主动攻击行为与D6S1043、D12S391基因座等位基因或基因型的关联情况.方法 采用PCR结合毛细管电泳的方法对江苏地区103例男性主动攻击行为者(研究组)和159例健康男性(对照组)的外周静脉血样进行D6S1043、D12S391基因座的基因型分析,观察两组在D6S1043、D12S391基因座的等位基因及基因型分布差异,以推测与主动攻击行为相关的易感因素和(或)抗性因素.结果 D6S1043、D12S391基因座均符合遗传平衡定律(Hardy-Weinberg定律)(P＞0.05);在两个群体中D6S1043基因座的基因型12-19的频率分布差异有统计学意义(P =0.000 4,OR=7.511,95％CI:2.084 ～ 27.066),但等位基因频率分布无差异(P ＞0.05/n);在D12S391基因座上未发现分布存在显著差异的等位基因及基因型(P ＞0.05/n).结论 D6S1043基因座的基因型12-19可能为主动攻击行为的易感因素.     

PentaD、PentaE基因座基因频率在军人主、被动攻击行为群体分布的比较

目的通过比较PentaD、PentaE基因座等位基因及基因型频率在军人主、被动攻击行为群体中的分布,来推测与主、被动攻击行为发生相关的遗传因素。方法采用PCR结合毛细管电泳的方法对华东地区273例男性军人主动攻击行为者与163例男性军人被动攻击行为者进行PentaD、PentaE基因座的基因型分析,观察两组在PentaD、PentaE基因座的等位基因及基因型分布差异。结果PentaD、PentaE基因座均符合Hardy-Weinberg平衡;PentaE基因座基因型频率在主、被动军人攻击行为群体分布差异有统计学意义（P〈0．01）;单因素分析显示两组在PentaE基因座的基因型16-18的频率分布差异有统计学意义（P=0．0001）;PentaE基因座等位基因频率及PentaD基因座等位基因频率和基因型频率在两个群体中分布差异均无统计学意义（P〉0．05）。结论PentaE基因座可能与攻击行为的发生有关;在人攻击行为群体中PentaE基因座的基因型16-18为被动攻击行为的易感因素。     

Genetic polymorphisms of 20 STR loci in a Chaoshan group from Jieyang,China

We obtained allelic frequencies and forensic parameters of 20 short tandem repeat (STR) loci (D3S1358, FGA, D5S818, D7S820, CSF1PO, D16S539, D19S433, vWA, D8S1179, D18S51, D13S317, TPOX, TH01, D2S1338, D12S391, D1S1656, D21S11, D6S1043, Penta D, Penta E) from 529 unrelated individuals in Jieyang Han population using PowerPlex® 21 (Promega, Madison, Wi, USA). The relationship between the Jieyang Han group and other Han populations was studied and the results showed that the Jieyang Han population had the closest genetic relationship with the Fujian Han population.     

Legislated right for donor-insemination children to know their genetic origin: a study of parental thinking

BACKGROUND: In Sweden, a child born as a result of donor insemination (DI) has the right to receive information both about the DI and the identity of the donor. The present study aimed to elucidate parents' thoughts regarding these possibilities, and whether, how and when they had told their offspring about the DI. An additional aim was to examine the parents' experiences of the attitudes of healthcare providers. METHODS: A follow-up study using semi-structured telephone interviews with 19 couples, including 19 women and 17 men. RESULTS: More than half of the parents (61%) had told all their child/ren about the DI, but almost everyone had told another person. Mean age for disclosure was 5 years for the first child. Reasons given for disclosure were to avoid accidental discovery, a desire for openness and a persons' fundamental right to know his/her genetic origin. Parents who did not intend to tell their child/ren considered DI a private matter and were afraid of other people's attitudes. Sixty-one percent of the parents had not yet told their children about the possibility of identifying the donor. Healthcare staff had impacted on the parents' thinking, and a majority of those who had been encouraged to tell their child/ren about the DI had done so. CONCLUSIONS: There was a discrepancy between the intentions of the legislation and how parents act in relation to them. To improve compliance, it is crucial to organize education, support and ethical discussion among professionals, and to offer parents, and parents-to-be, counselling, support and group sessions with other DI families.     

Involvement of an Orphan Transporter,SLC22A18, in Cell Growth and Drug Resistance of Human Breast Cancer MCF7 Cells

The SLC22A18 gene, which encodes an orphan transporter, is located at the 11p15.5 imprinted region, an important tumor suppressor gene region. However, the role of SLC22A18 in tumor suppression remains unclear. Here, we investigated the involvement of SLC22A18 in cell growth, invasion, and drug resistance of MCF7 human breast cancer cell line. Western blot analysis indicated that SLC22A18 is predominantly expressed at intracellular organelle membranes. Quantitative proteomics showed that knockdown of SLC22A18 significantly altered the expression of 578 (31.0%) of 1867 proteins identified, including proteins related to malignancy and poor prognosis of breast cancer. SLC22A18 knockdown (1) increased MCF7 cell growth concomitantly with a >7-fold increase of annexin A8 (involved in cell growth and migration; a predictor of poor prognosis), (2) induced spherical morphology of MCF7 cells concomitantly with a nearly 3-fold increase of CD44 (involved in regulation of malignant phenotypes), and (3) increased chemosensitivity to vinca alkaloids concomitantly with a >80% reduction of doublecortin-like kinase 1 (involved in regulation of microtubule polymerization). Our results suggest that SLC22A18 may act as a tumor suppressor by regulating the expression levels of cell growth–related proteins, and vinca alkaloids might show therapeutic efficacy against low-SLC22A18–expressing breast cancer.