Covid-19: What is the best approach in gynecological oncology patient management during the coronavirus pandemic?

Coronavirus (COVID-19) infection is a new major concern and a global emergency in almost all countries worldwide; due to the higher sensibility of cancer patients, they are more susceptible to severe and fatal infections, being nearly 10 times more likely than in healthy individuals infected with this virus. Although the aggressive nature of a cancer is a matter of concern, our exact role as oncologists in this time of restricted resources is not fully clarified. Regarding some consensus recommendation for postponing surgery, there is still an essential need for a single approved protocol regarding each type of malignancy. Iran, as one of the first involved countries in this crisis in Asia, which also has a high prevalence of gynecological malignancies, will certainly require an individualized decision-making schedule based on the most accepted global consensus opinion. Considering our restricted health system resources, herein we tried to introduce a logical gynecologic cancer management protocol based on the stage and survival expectancy of each tumor, along with reviewing all recent recommendations. The limited statistics published in this short period of time have obliged us to mainly focus on expert opinions, and the individualized clinical judgments should be agreed upon by multidisciplinary tumor board consensus. In conclusion, the COVID-19 pandemic overshadows all aspects of medicine, and decision making in gynecological oncology patients requires precise and appropriate judgment based on the available local resources.

Homozygous Null TBX4 Mutations Lead to Posterior Amelia with Pelvic and Pulmonary Hypoplasia.

The development of hindlimbs in tetrapod species relies specifically on the transcription factor TBX4. In humans, heterozygous loss-of-function TBX4 mutations cause dominant small patella syndrome (SPS) due to haploinsufficiency. Here, we characterize a striking clinical entity in four fetuses with complete posterior amelia with pelvis and pulmonary hypoplasia (PAPPA). Through exome sequencing, we find that PAPPA syndrome is caused by homozygous TBX4 inactivating mutations during embryogenesis in humans. In two consanguineous couples, we uncover distinct germline TBX4 coding mutations, p.Tyr113∗ and p.Tyr127Asn, that segregated with SPS in heterozygous parents and with posterior amelia with pelvis and pulmonary hypoplasia syndrome (PAPPAS) in one available homozygous fetus. A complete absence of TBX4 transcripts in this proband with biallelic p.Tyr113∗ stop-gain mutations revealed nonsense-mediated decay of the endogenous mRNA. CRISPR/Cas9-mediated TBX4 deletion in Xenopus embryos confirmed its restricted role during leg development. We conclude that SPS and PAPPAS are allelic diseases of TBX4 deficiency and that TBX4 is an essential transcription factor for organogenesis of the lungs, pelvis, and hindlimbs in humans.

Effects of Phytoestrogens in Alleviating the Menopausal Symptoms: A Systematic Review and Meta-Analysis.

The aim of this study was to perform a meta-analysis of high-quality, randomized, controlled trials (RCTs), to investigate the effectiveness of phytoestrogens in alleviating the menopausal symptoms (vaginal atrophy). Variety of databases including PubMed, Scopus, and Cochrane Central Register of Controlled Trials (CCRCT) were searched up to May 2015 according to the below-mentioned pre-specified search strategy and using the relevant MeSH terms. The mean difference was applied as an estimate of the main effect size. Moreover, due to the considerable heterogeneity among studies, the random-effects model was used to obtain the pooled effect size derived from primary studies. Results showed that while the standardized mean difference of vaginal cell maturation index was increased up to 0.164 percent (with the confidence interval at 95%: (-0.419-0.746), but this increase was not statistically significant (P=0.582). The absence of the publication bias was confirmed using the Egger's regression intercept test (P = 0.24). Also, meta-analysis of soybeans studies showed that while the standardized mean difference of vaginal maturation index increased 0.072% in (95% CI: -0.42 to 0.5.), this increase was not statistically significant (p = 0.777). The results confirm that soybeans and phytoestrogens have non-significant positive effects on the vaginal atrophy index. Hence, it is suggested that with regard to non-significant positive effects, non-hormonal treatments along with other treatments such as the vaginal gels and so on should be used more in cases with non-severe vaginal atrophy.